NetBSD/sys/dev/ofisa/sb_ofisa.c

196 lines
5.3 KiB
C

/* $NetBSD: sb_ofisa.c,v 1.2 1998/07/14 01:39:34 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/mulaw.h>
#include <dev/ofw/openfirm.h>
#include <dev/isa/isavar.h>
#include <dev/ofisa/ofisavar.h>
#include <dev/isa/sbreg.h>
#include <dev/isa/sbvar.h>
#include <dev/isa/sbdspvar.h>
int sb_ofisa_match __P((struct device *, struct cfdata *, void *));
void sb_ofisa_attach __P((struct device *, struct device *, void *));
struct cfattach sb_ofisa_ca = {
sizeof(struct sbdsp_softc), sb_ofisa_match, sb_ofisa_attach
};
int
sb_ofisa_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct ofisa_attach_args *aa = aux;
const char *compatible_strings[] = {
"pnpPNP,b000", /* generic SB 1.5 */
"pnpPNP,b001", /* generic SB 2.0 */
"pnpPNP,b002", /* generic SB Pro */
"pnpPNP,b003", /* generic SB 16 */
NULL,
};
int rv = 0;
if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) {
/*
* Use a low match priority so that a more specific driver
* can match, e.g. a native ESS driver.
*/
rv = 1;
}
return (rv);
}
void
sb_ofisa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sbdsp_softc *sc = (void *)self;
struct ofisa_attach_args *aa = aux;
struct ofisa_reg_desc reg;
struct ofisa_intr_desc intr;
struct ofisa_dma_desc dma[2];
int n, ndrq;
char *model;
/*
* We're living on an OFW. We have to ask the OFW what our
* registers and interrupts properties look like.
*
* We expect:
*
* 1 i/o register region
* 1 interrupt
* 1 or 2 dma channels
*/
n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
if (n != 1) {
printf(": error getting register data\n");
return;
}
if (reg.type != OFISA_REG_TYPE_IO) {
printf(": register type not i/o\n");
return;
}
if (reg.len != SB_NPORT && reg.len != SBP_NPORT) {
printf(": weird register size (%lu, expected %d or %d)\n",
(unsigned long)reg.len, SB_NPORT, SBP_NPORT);
return;
}
n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
if (n != 1) {
printf(": error getting interrupt data\n");
return;
}
ndrq = ofisa_dma_get(aa->oba.oba_phandle, dma, 2);
if (ndrq != 1 && ndrq != 2) {
printf(": error getting DMA data\n");
return;
}
sc->sc_ic = aa->ic;
sc->sc_iot = aa->iot;
sc->sc_iobase = reg.addr;
if (bus_space_map(sc->sc_iot, sc->sc_iobase, reg.len, 0,
&sc->sc_ioh)) {
printf(": unable to map register space\n");
return;
}
sc->sc_irq = intr.irq;
sc->sc_ist = intr.share;
sc->sc_drq8 = DRQUNK;
sc->sc_drq16 = DRQUNK;
for (n = 0; n < ndrq; n++) {
/* XXX check mode? */
switch (dma[n].width) {
case 8:
if (sc->sc_drq8 == DRQUNK)
sc->sc_drq8 = dma[n].drq;
break;
case 16:
if (sc->sc_drq16 == DRQUNK)
sc->sc_drq16 = dma[n].drq;
break;
default:
printf(": weird DMA width %d\n", dma[n].width);
return;
}
}
if (sc->sc_drq8 == DRQUNK) {
printf(": no 8-bit DMA channel\n");
return;
}
if (sbmatch(sc) == 0) {
printf(": sbmatch failed\n");
return;
}
n = OF_getproplen(aa->oba.oba_phandle, "model");
if (n > 0) {
model = alloca(n);
if (OF_getprop(aa->oba.oba_phandle, "model", model, n) == n)
printf(": %s\n%s", model, sc->sc_dev.dv_xname);
}
sbattach(sc);
}