NetBSD/sys/dev/isapnp/sb_isapnp.c

/*	$NetBSD: sb_isapnp.c,v 1.54 2023/04/18 06:37:25 riastradh 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sb_isapnp.c,v 1.54 2023/04/18 06:37:25 riastradh Exp $");

#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 <sys/bus.h>

#include <sys/audioio.h>
#include <dev/audio/audio_if.h>
#include <dev/midi_if.h>

#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>

#include <dev/isapnp/isapnpreg.h>
#include <dev/isapnp/isapnpvar.h>
#include <dev/isapnp/isapnpdevs.h>

#include <dev/isa/sbreg.h>
#include <dev/isa/sbvar.h>
#include <dev/isa/sbdspvar.h>

int	sb_isapnp_match(device_t, cfdata_t, void *);
void	sb_isapnp_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(sb_isapnp, sizeof(struct sbdsp_softc),
    sb_isapnp_match, sb_isapnp_attach, NULL, NULL);

/*
 * Probe / attach routines.
 */

/*
 * Probe for the soundblaster hardware.
 */
int
sb_isapnp_match(device_t parent, cfdata_t match, void *aux)
{
	int pri, variant;

	pri = isapnp_devmatch(aux, &isapnp_sb_devinfo, &variant);
	if (pri && variant > 0)
		pri = 0;
	return pri;
}

/*
 * Attach hardware to driver, attach hardware driver to audio
 * pseudo-device driver.
 */
void
sb_isapnp_attach(device_t parent, device_t self, void *aux)
{
	struct sbdsp_softc *sc;
	struct isapnp_attach_args *ipa;

	sc = device_private(self);
	sc->sc_dev = self;
	ipa = aux;
	aprint_normal("\n");

	/*
	 * Avance logic ALS100+ does not like being frobbed
	 * trying to set irq/drq so set that quirk skip over it
	 */
	if(!strcmp(ipa->ipa_devlogic, "@@@1001"))
		sc->sc_quirks = SB_QUIRK_NO_INIT_DRQ;

	if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) {
		aprint_error_dev(self, "error in region allocation\n");
		return;
	}

	sc->sc_ic = ipa->ipa_ic;

	sc->sc_iot = ipa->ipa_iot;
	sc->sc_ioh = ipa->ipa_io[0].h;

	/* XXX These are only for setting chip configuration registers. */
	sc->sc_iobase = ipa->ipa_io[0].base;
	sc->sc_irq = ipa->ipa_irq[0].num;

	sc->sc_drq8 = ipa->ipa_drq[0].num;
	if (ipa->ipa_ndrq > 1 && ipa->ipa_drq[0].num != ipa->ipa_drq[1].num) {
		/* Some cards have the 16 bit drq first */
		if (sc->sc_drq8 >= 4) {
			sc->sc_drq16 = sc->sc_drq8;
			sc->sc_drq8 = ipa->ipa_drq[1].num;
		} else
			sc->sc_drq16 = ipa->ipa_drq[1].num;
	} else
		sc->sc_drq16 = -1;

#if NMPU > 0
	/*
	 * Aztech 1020 doesn't store information about its mpu in io[1].
	 * It has a separate pnpdev for the mpu.
	 * The same is true for an AD1816 AOpen soundcard (ID ADS7180)
	 * so it will be treated the same here. But it was not before,
	 * which leads to the question: could there be other cards that
	 * identify as ADS7180 but map the mpu differently? That would be
	 * inconvenient....
	 */
	if (strcmp(ipa->ipa_devlogic, "AZT1016") == 0 ||
	    strcmp(ipa->ipa_devlogic, "ADS7180") == 0)
		sc->sc_hasmpu = SBMPU_NONE;
	else if (ipa->ipa_nio > 1) {
		sc->sc_hasmpu = SBMPU_EXTERNAL;
		sc->sc_mpu_iot = ipa->ipa_iot;
		sc->sc_mpu_ioh = ipa->ipa_io[1].h;
	}
#endif

	if (!sbmatch(sc, 0, device_cfdata(self))) {
		aprint_error_dev(self, "sbmatch failed\n");
		return;
	}

	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);

	sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num,
	    ipa->ipa_irq[0].type, IPL_AUDIO, sbdsp_intr, sc);

	aprint_normal_dev(self, "%s %s", ipa->ipa_devident, ipa->ipa_devclass);

	sbattach(sc);
}