From fb1480679e84094bc322164a241adc2364432552 Mon Sep 17 00:00:00 2001
From: Alexandre Ratchov <ratchov@cvs.openbsd.org>
Date: Sat, 18 Jun 2016 07:59:31 +0000
Subject: Add a new AUDIO_GETSTATUS ioctl to get various audio driver
 variables. It's intended for use with diagnostic tools (like audioctl) and is
 of no use to audio programs.

---
 sys/dev/audio.c   | 14 +++++++++++++-
 sys/sys/audioio.h | 13 ++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

(limited to 'sys')

diff --git a/sys/dev/audio.c b/sys/dev/audio.c
index 29419c5ae67..ade54dfb825 100644
--- a/sys/dev/audio.c
+++ b/sys/dev/audio.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: audio.c,v 1.148 2016/06/01 09:48:20 mglocker Exp $	*/
+/*	$OpenBSD: audio.c,v 1.149 2016/06/18 07:59:30 ratchov Exp $	*/
 /*
  * Copyright (c) 2015 Alexandre Ratchov <alex@caoua.org>
  *
@@ -1160,6 +1160,15 @@ audio_ioc_setpar(struct audio_softc *sc, struct audio_swpar *p)
 	return 0;
 }
 
+int
+audio_ioc_getstatus(struct audio_softc *sc, struct audio_status *p)
+{
+	p->mode = sc->mode;
+	p->pause = sc->pause;
+	p->active = sc->active;
+	return 0;
+}
+
 int
 audio_match(struct device *parent, void *match, void *aux)
 {
@@ -1743,6 +1752,9 @@ audio_ioctl(struct audio_softc *sc, unsigned long cmd, void *addr)
 	case AUDIO_GETPAR:
 		error = audio_ioc_getpar(sc, (struct audio_swpar *)addr);
 		break;
+	case AUDIO_GETSTATUS:
+		error = audio_ioc_getstatus(sc, (struct audio_status *)addr);
+		break;
 	case AUDIO_SETINFO:
 		error = audio_setinfo(sc, (struct audio_info *)addr);
 		break;
diff --git a/sys/sys/audioio.h b/sys/sys/audioio.h
index 0c5e850f073..e145904a2ec 100644
--- a/sys/sys/audioio.h
+++ b/sys/sys/audioio.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: audioio.h,v 1.24 2016/03/16 06:46:39 ratchov Exp $	*/
+/*	$OpenBSD: audioio.h,v 1.25 2016/06/18 07:59:30 ratchov Exp $	*/
 /*	$NetBSD: audioio.h,v 1.24 1998/08/13 06:28:41 mrg Exp $	*/
 
 /*
@@ -58,6 +58,16 @@ struct audio_swpar {
 	unsigned int _spare[6];
 };
 
+/*
+ * argument to AUDIO_GETSTATUS
+ */
+struct audio_status {
+	int mode;
+	int pause;
+	int active;
+	int _spare[5];
+};
+
 /*
  * Audio device
  */
@@ -173,6 +183,7 @@ typedef struct audio_encoding {
 #define AUDIO_SETPAR	_IOWR('A', 37, struct audio_swpar)
 #define AUDIO_START	_IO('A', 38)
 #define AUDIO_STOP	_IO('A', 39)
+#define AUDIO_GETSTATUS	_IOR('A', 40, struct audio_status)
 #define  AUDIO_PROP_FULLDUPLEX	0x01
 #define  AUDIO_PROP_MMAP	0x02
 #define  AUDIO_PROP_INDEPENDENT	0x04
-- 
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