"mpu at ym" attachment glue for making use of

Roland MPU401 compatible MIDI port on Yamaha OPL3-SA3.

sys/dev/isa/mpu_ym.c

@@ -0,0 +1,121 @@
+/*	$NetBSD: mpu_ym.c,v 1.1 1999/10/05 03:41:05 itohy Exp $	*/
+
+/*
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Lennart Augustsson (augustss@netbsd.org).
+ *
+ * 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.
+ */
+
+#define NMPU_YM 1
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/device.h>
+#include <sys/proc.h>
+#include <sys/conf.h>
+#include <sys/audioio.h>
+#include <sys/midiio.h>
+
+#include <machine/bus.h>
+
+#include <dev/audio_if.h>
+#include <dev/midi_if.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/ad1848var.h>
+#include <dev/ic/opl3sa3reg.h>
+#include <dev/isa/ymvar.h>
+#include <dev/ic/mpuvar.h>
+
+int	mpu_ym_match __P((struct device *, struct cfdata *, void *));
+void	mpu_ym_attach __P((struct device *, struct device *, void *));
+#ifndef AUDIO_NO_POWER_CTL
+int	mpu_ym_power_ctl __P((void *, int));
+#endif
+
+struct cfattach mpu_ym_ca = {
+	sizeof (struct mpu_softc), mpu_ym_match, mpu_ym_attach
+};
+
+int
+mpu_ym_match(parent, match, aux)
+	struct device *parent;
+	struct cfdata *match;
+	void *aux;
+{
+	struct audio_attach_args *aa = (struct audio_attach_args *)aux;
+	struct ym_softc *ssc = (struct ym_softc *)parent;
+	struct mpu_softc sc;
+
+	if (aa->type != AUDIODEV_TYPE_MPU || ssc->sc_mpu_ioh == 0)
+		return (0);
+	memset(&sc, 0, sizeof sc);
+	sc.ioh = ssc->sc_mpu_ioh;
+	sc.iot = ssc->sc_iot;
+	return (mpu_find(&sc));
+}
+
+void
+mpu_ym_attach(parent, self, aux)
+	struct device *parent;
+	struct device *self;
+	void *aux;
+{
+	struct ym_softc *ssc = (struct ym_softc *)parent;
+	struct mpu_softc *sc = (struct mpu_softc *)self;
+
+	sc->ioh = ssc->sc_mpu_ioh;
+	sc->iot = ssc->sc_iot;
+#ifndef AUDIO_NO_POWER_CTL
+	sc->powerctl = mpu_ym_power_ctl;
+	sc->powerarg = ssc;
+#endif
+	sc->model = "OPL3-SA3 MPU-401 MIDI UART";
+
+	mpu_attach(sc);
+}
+
+#ifndef AUDIO_NO_POWER_CTL
+int
+mpu_ym_power_ctl(arg, onoff)
+	void *arg;
+	int onoff;
+{
+	struct ym_softc *ssc = arg;
+
+	ym_power_ctl(ssc, YM_POWER_MPU401, onoff);
+	return 0;
+}
+#endif