 @@ -1,502 +1,503 @@
-/* $NetBSD: wsbell.c,v 1.6 2017/06/13 00:49:05 nat Exp $ */
+/* $NetBSD: wsbell.c,v 1.7 2017/06/13 00:54:37 nat Exp $ */
 /*-
  * Copyright (c) 2017 Nathanial Sloss <nathanialsloss@yahoo.com.au>
  * All rights reserved.
+ *
  * Copyright (c) 2006 The NetBSD Foundation, Inc.
  * All rights reserved.
+ *
  * This code is derived from software contributed to The NetBSD Foundation
  * by Julio M. Merino Vidal.
+ *
  * 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.
+ *
  * 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.
  */
 /*
  * Copyright (c) 1996, 1997 Christopher G. Demetriou.  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 Christopher G. Demetriou
  *	for the NetBSD Project.
  * 4. The name of the author may not be used to endorse or promote products
  *    derived from this software without specific prior written permission
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  */
 /*
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
+ *
  * This software was developed by the Computer Systems Engineering group
  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
  * contributed to Berkeley.
+ *
  * All advertising materials mentioning features or use of this software
  * must display the following acknowledgement:
  *	This product includes software developed by the University of
  *	California, Lawrence Berkeley Laboratory.
+ *
  * 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. Neither the name of the University 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 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.
+ *
  *	@(#)ms.c	8.1 (Berkeley) 6/11/93
  */
 /*
  * Keyboard Bell driver.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: wsbell.c,v 1.6 2017/06/13 00:49:05 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: wsbell.c,v 1.7 2017/06/13 00:54:37 nat Exp $");
 #if defined(_KERNEL_OPT)
 #include "wsmux.h"
 #endif
 #include <sys/param.h>
 #include <sys/conf.h>
 #include <sys/ioctl.h>
 #include <sys/poll.h>
 #include <sys/fcntl.h>
 #include <sys/kernel.h>
 #include <sys/condvar.h>
 #include <sys/mutex.h>
 #include <sys/kthread.h>
 #include <sys/proc.h>
 #include <sys/syslog.h>
 #include <sys/systm.h>
 #include <sys/tty.h>
 #include <sys/signalvar.h>
 #include <sys/device.h>
 #include <sys/vnode.h>
 #include <sys/callout.h>
 #include <sys/malloc.h>
 #include <sys/module.h>
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsbellvar.h>
 #include <dev/wscons/wsbellmuxvar.h>
 #include <dev/wscons/wsbelldata.h>
 #include <dev/spkrio.h>
 #include "ioconf.h"
 #if defined(WSMUX_DEBUG) && NWSMUX > 0
 #define DPRINTF(x)	if (wsmuxdebug) printf x
 #define DPRINTFN(n,x)	if (wsmuxdebug > (n)) printf x
 extern int wsmuxdebug;
 #else
 #define DPRINTF(x)
 #define DPRINTFN(n,x)
 #endif
 static void bell_thread(void *);
 static inline void spkr_audio_play(struct wsbell_softc *, u_int, u_int, u_int);
 static int  wsbell_match(device_t, cfdata_t, void *);
 static void wsbell_attach(device_t, device_t, void *);
 static int  wsbell_detach(device_t, int);
 static int  wsbell_activate(device_t, enum devact);
 #if NWSMUX > 0
 static int  wsbell_mux_open(struct wsevsrc *, struct wseventvar *);
 static int  wsbell_mux_close(struct wsevsrc *);
 static int  wsbelldoopen(struct wsbell_softc *, struct wseventvar *);
 static int  wsbelldoioctl(device_t, u_long, void *, int, struct lwp *);
 static int  wsbell_do_ioctl(struct wsbell_softc *, u_long, void *,
 			     int, struct lwp *);
 #endif
 CFATTACH_DECL_NEW(wsbell, sizeof (struct wsbell_softc),
     wsbell_match, wsbell_attach, wsbell_detach, wsbell_activate);
 extern struct cfdriver wsbell_cd;
 extern dev_type_open(spkropen);
 extern dev_type_close(spkrclose);
 extern dev_type_ioctl(spkrioctl);
 const struct cdevsw wsbell_cdevsw = {
 	.d_open = noopen,
 	.d_close = noclose,
 	.d_read = noread,
 	.d_write = nowrite,
 	.d_ioctl = noioctl,
 	.d_stop = nostop,
 	.d_tty = notty,
 	.d_poll = nopoll,
 	.d_mmap = nommap,
 	.d_kqfilter = nokqfilter,
 	.d_discard = nodiscard,
 	.d_flag = D_OTHER
 };
 #if NWSMUX > 0
 struct wssrcops wsbell_srcops = {
 	WSMUX_BELL,
 	wsbell_mux_open, wsbell_mux_close, wsbelldoioctl, wsbelldoioctl, NULL
 };
 #endif
 int
 wsbell_match(device_t parent, cfdata_t match, void *aux)
+{
 	return (1);
+}
 void
 wsbell_attach(device_t parent, device_t self, void *aux)
+{
         struct wsbell_softc *sc = device_private(self);
 	struct wsbelldev_attach_args *ap = aux;
 #if NWSMUX > 0
 	int mux, error;
 #endif
 	sc->sc_base.me_dv = self;
 	sc->sc_accesscookie = ap->accesscookie;
 	sc->sc_dying = false;
 	sc->sc_spkr = device_unit(parent);
 	sc->sc_bell_data = wskbd_default_bell_data;
 #if NWSMUX > 0
 	sc->sc_base.me_ops = &wsbell_srcops;
 	mux = device_cfdata(self)->wsbelldevcf_mux;
 	if (mux >= 0) {
 		error = wsmux_attach_sc(wsmux_getmux(mux), &sc->sc_base);
 		if (error)
 			aprint_error(" attach error=%d", error);
 		else
 			aprint_normal(" mux %d", mux);
+	}
 #else
 	if (device_cfdata(self)->wsbelldevcf_mux >= 0)
 		aprint_normal(" (mux ignored)");
 #endif
 	aprint_naive("\n");
 	aprint_normal("\n");
 	if (!pmf_device_register(self, NULL, NULL))
 		aprint_error_dev(self, "couldn't establish power handler\n");
 	mutex_init(&sc->sc_bellock, MUTEX_DEFAULT, IPL_SCHED);
 	cv_init(&sc->sc_bellcv, "bellcv");
 	kthread_create(PRI_BIO, KTHREAD_MPSAFE | KTHREAD_MUSTJOIN, NULL,
 	    bell_thread, sc, &sc->sc_bellthread, "%s", device_xname(self));
+}
 int
 wsbell_activate(device_t self, enum devact act)
+{
 	struct wsbell_softc *sc = device_private(self);
 	if (act == DVACT_DEACTIVATE)
-		sc->sc_dying = 1;
+		sc->sc_dying = true;
 	return (0);
+}
 int
 wsbell_detach(device_t self, int flags)
+{
 	struct wsbell_softc *sc = device_private(self);
 	struct wseventvar *evar;
 	int maj, mn;
 	int s;
 #if NWSMUX > 0
 	/* Tell parent mux we're leaving. */
 	if (sc->sc_base.me_parent != NULL) {
 		DPRINTF(("wsbell_detach:\n"));
 		wsmux_detach_sc(&sc->sc_base);
+	}
 #endif
 	/* If we're open ... */
 	evar = sc->sc_base.me_evp;
 	if (evar != NULL && evar->io != NULL) {
 		s = spltty();
 		if (--sc->sc_refcnt >= 0) {
 			struct wscons_event event;
 			/* Wake everyone by generating a dummy event. */
 			event.type = 0;
 			event.value = 0;
 			if (wsevent_inject(evar, &event, 1) != 0)
 				wsevent_wakeup(evar);
 			/* Wait for processes to go away. */
 			if (tsleep(sc, PZERO, "wsmdet", hz * 60))
 				printf("wsbell_detach: %s didn't detach\n",
 				       device_xname(self));
+		}
 		splx(s);
+	}
 	/* locate the major number */
 	maj = cdevsw_lookup_major(&wsbell_cdevsw);
 	/* Nuke the vnodes for any open instances (calls close). */
 	mn = device_unit(self);
 	vdevgone(maj, mn, mn, VCHR);
 	mutex_enter(&sc->sc_bellock);
-	sc->sc_dying = 1;
+	sc->sc_dying = true;
 	cv_broadcast(&sc->sc_bellcv);
 	mutex_exit(&sc->sc_bellock);
 	kthread_join(sc->sc_bellthread);
 	cv_destroy(&sc->sc_bellcv);
 	mutex_destroy(&sc->sc_bellock);
 	return (0);
+}
 #if NWSMUX > 0
 int
 wsbelldoopen(struct wsbell_softc *sc, struct wseventvar *evp)
+{
 	return (0);
+}
 /* A wrapper around the ioctl() workhorse to make reference counting easy. */
 int
 wsbelldoioctl(device_t dv, u_long cmd, void *data, int flag,
 	       struct lwp *l)
+{
 	struct wsbell_softc *sc = device_private(dv);
 	int error;
 	sc->sc_refcnt++;
 	error = wsbell_do_ioctl(sc, cmd, data, flag, l);
 	if (--sc->sc_refcnt < 0)
 		wakeup(sc);
 	return (error);
+}
 int
 wsbell_do_ioctl(struct wsbell_softc *sc, u_long cmd, void *data,
 		 int flag, struct lwp *l)
+{
 	struct wskbd_bell_data *ubdp, *kbdp;
-	if (sc->sc_dying)
+	if (sc->sc_dying == true)
 		return (EIO);
 	/*
 	 * Try the wsbell specific ioctls.
 	 */
 	switch (cmd) {
 	case WSKBDIO_SETBELL:
 		if ((flag & FWRITE) == 0)
 			return (EACCES);
 		kbdp = &sc->sc_bell_data;
 		ubdp = (struct wskbd_bell_data *)data;
 		SETBELL(kbdp, ubdp, kbdp);
 		return (0);
 	case WSKBDIO_GETBELL:
 		kbdp = &sc->sc_bell_data;
 		ubdp = (struct wskbd_bell_data *)data;
 		SETBELL(ubdp, kbdp, kbdp);
 		return (0);
 	case WSKBDIO_BELL:
 		if ((flag & FWRITE) == 0)
 			return (EACCES);
 		spkr_audio_play(sc, sc->sc_bell_data.pitch,
 		    sc->sc_bell_data.period, sc->sc_bell_data.volume);
 		return 0;
 	case WSKBDIO_COMPLEXBELL:
 		if ((flag & FWRITE) == 0)
 			return (EACCES);
 		if (data == NULL)
 			return 0;
 #define d ((struct wskbd_bell_data *)data)
 		spkr_audio_play(sc, d->pitch, d->period, d->volume);
 #undef d
 		return 0;
+	}
 	return (EPASSTHROUGH);
+}
 #endif
 static void
 bell_thread(void *arg)
+{
 	struct wsbell_softc *sc = arg;
 	struct vbell_args *vb = &sc->sc_bell_args;
 	tone_t tone;
 	u_int vol;
 	for (;;) {
 		mutex_enter(&sc->sc_bellock);
 		cv_wait_sig(&sc->sc_bellcv, &sc->sc_bellock);
-		if (sc->sc_dying) {
+		if (sc->sc_dying == true) {
 			mutex_exit(&sc->sc_bellock);
 			kthread_exit(0);
+		}
 		tone.frequency = vb->pitch;
 		tone.duration = vb->period;
 		vol = vb->volume;
 		mutex_exit(&sc->sc_bellock);
 		if (spkropen(sc->sc_spkr, FWRITE, 0, NULL) != 0)
 			continue;
 		spkrioctl(sc->sc_spkr, SPKRSETVOL, &vol, 0, curlwp);
 		spkrioctl(sc->sc_spkr, SPKRTONE, &tone, 0, curlwp);
 		spkrclose(sc->sc_spkr, FWRITE, 0, curlwp);
+	}
+}
 static inline void
 spkr_audio_play(struct wsbell_softc *sc, u_int pitch, u_int period, u_int volume)
+{
 	mutex_enter(&sc->sc_bellock);
 	sc->sc_bell_args.pitch = pitch;
 	sc->sc_bell_args.period = period / 5;
 	sc->sc_bell_args.volume = volume;
 	cv_broadcast(&sc->sc_bellcv);
 	mutex_exit(&sc->sc_bellock);
+}
 #if NWSMUX > 0
 int
 wsbell_mux_open(struct wsevsrc *me, struct wseventvar *evp)
+{
 	struct wsbell_softc *sc = (struct wsbell_softc *)me;
 	if (sc->sc_base.me_evp != NULL)
 		return (EBUSY);
 	return wsbelldoopen(sc, evp);
+}
 int
 wsbell_mux_close(struct wsevsrc *me)
+{
 	struct wsbell_softc *sc = (struct wsbell_softc *)me;
 	sc->sc_base.me_evp = NULL;
 	return (0);
+}
 #endif /* NWSMUX > 0 */
 MODULE(MODULE_CLASS_DRIVER, wsbell, "spkr");
 #ifdef _MODULE
 int wsbell_bmajor = -1, wsbell_cmajor = -1;
 #include "ioconf.c"
 #endif
 static int
 wsbell_modcmd(modcmd_t cmd, void *arg)
+{
 	int error = 0;
 	switch (cmd) {
 	case MODULE_CMD_INIT:
 #ifdef _MODULE
 		error = devsw_attach("wsbell", NULL, &wsbell_bmajor,
 		    &wsbell_cdevsw, &wsbell_cmajor);
 		if (error)
 			break;
 		error = config_init_component(cfdriver_ioconf_wsbell,
 		    cfattach_ioconf_wsbell, cfdata_ioconf_wsbell);
 		if (error)
 			devsw_detach(NULL, &wsbell_cdevsw);
 #endif
 		break;
 	case MODULE_CMD_FINI:
 #ifdef _MODULE
 		devsw_detach(NULL, &wsbell_cdevsw);
 		error = config_fini_component(cfdriver_ioconf_wsbell,
 		    cfattach_ioconf_wsbell, cfdata_ioconf_wsbell);
 		if (error)
 			devsw_attach("wsbell", NULL, &wsbell_bmajor,
 			    &wsbell_cdevsw, &wsbell_cmajor);
 #endif
 		break;
 	default:
 		error = ENOTTY;
 		break;
+	}
 	return error;
+}