sound: Move sndstat out of pcm/

Needed by follow-up patches that will add sndstat support for midi/

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D54140

sys/dev/sound/pcm/sound.c

@@ -41,6 +41,7 @@
 #include <dev/sound/pcm/ac97.h>
 #include <dev/sound/pcm/vchan.h>
 #include <dev/sound/pcm/dsp.h>
+#include <dev/sound/sndstat.h>
 #include <sys/limits.h>
 #include <sys/sysctl.h>
 

sys/dev/sound/pcm/sound.h

@@ -66,7 +66,6 @@
 #include <sys/poll.h>
 #include <sys/sbuf.h>
 #include <sys/soundcard.h>
-#include <sys/sndstat.h>
 #include <sys/sysctl.h>
 #include <sys/kobj.h>
 #include <vm/vm.h>
@@ -167,9 +166,6 @@ void *pcm_getdevinfo(device_t dev);
 int snd_setup_intr(device_t dev, struct resource *res, int flags,
 		   driver_intr_t hand, void *param, void **cookiep);
 
-int sndstat_register(device_t dev, char *str);
-int sndstat_unregister(device_t dev);
-
 /* These are the function codes assigned to the children of sound cards. */
 enum {
 	SCF_PCM,

sys/dev/sound/sndstat.c

@@ -40,13 +40,15 @@
 #endif
 
 #include <sys/param.h>
+#include <sys/dnv.h>
 #include <sys/lock.h>
 #include <sys/malloc.h>
 #include <sys/nv.h>
-#include <sys/dnv.h>
+#include <sys/sndstat.h>
 #include <sys/sx.h>
 
 #include <dev/sound/pcm/sound.h>
+#include <dev/sound/sndstat.h>
 
 #include "feeder_if.h"
 

sys/dev/sound/sndstat.h

@@ -0,0 +1,37 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by Christos Margiolis
+ * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
+ *
+ * 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 AUTHOR 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 AUTHOR 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.
+ */
+
+#ifndef _SNDSTAT_H_
+#define _SNDSTAT_H_
+
+int sndstat_register(device_t dev, char *str);
+int sndstat_unregister(device_t dev);
+
+#endif /* _SNDSTAT_H_ */

sys/modules/sound/sound/Makefile

@@ -15,8 +15,9 @@ SRCS+=	feeder_eq_gen.h feeder_rate_gen.h snd_fxdiv_gen.h
 SRCS+=	mpu_if.h mpufoi_if.h
 SRCS+=	mpu_if.c mpufoi_if.c
 SRCS+=	ac97.c buffer.c channel.c dsp.c
-SRCS+=	mixer.c sndstat.c sound.c vchan.c
+SRCS+=	mixer.c sound.c vchan.c
 SRCS+=	midi.c mpu401.c
+SRCS+=	sndstat.c
 
 feeder_eq_gen.h:	${SYSDIR}/tools/sound/feeder_eq_mkfilter.awk
 	${AWK} -f ${SYSDIR}/tools/sound/feeder_eq_mkfilter.awk -- ${FEEDER_EQ_PRESETS} > ${.TARGET}