[src/trunk]: src/share/man/man4/man4.evbarm Add a man page for vcaudio(4)

[nia <nia%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c62f8647776d
branches:  trunk
changeset: 953096:c62f8647776d
user:      nia <nia%NetBSD.org@localhost>
date:      Fri Feb 26 09:20:58 2021 +0000

description:
Add a man page for vcaudio(4)

diffstat:

 share/man/man4/man4.evbarm/Makefile  |   4 +-
 share/man/man4/man4.evbarm/vcaudio.4 |  67 ++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 2 deletions(-)

diffs (84 lines):

diff -r c43f6982a7ee -r c62f8647776d share/man/man4/man4.evbarm/Makefile
--- a/share/man/man4/man4.evbarm/Makefile       Fri Feb 26 06:39:14 2021 +0000
+++ b/share/man/man4/man4.evbarm/Makefile       Fri Feb 26 09:20:58 2021 +0000
@@ -1,7 +1,7 @@
-#      $NetBSD: Makefile,v 1.9 2019/06/06 05:32:29 mrg Exp $
+#      $NetBSD: Makefile,v 1.10 2021/02/26 09:20:58 nia Exp $
 
 MAN=   awge.4 bcmgpio.4 cpsw.4 epgpio.4 gxio.4 intro.4 iopaau.4 iopwdog.4 \
-       rktsadc.4
+       rktsadc.4 vcaudio.4
 
 MANSUBDIR=/evbarm
 
diff -r c43f6982a7ee -r c62f8647776d share/man/man4/man4.evbarm/vcaudio.4
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/share/man/man4/man4.evbarm/vcaudio.4      Fri Feb 26 09:20:58 2021 +0000
@@ -0,0 +1,67 @@
+.\" $NetBSD: vcaudio.4,v 1.1 2021/02/26 09:20:58 nia Exp $
+.\"
+.\" Copyright (c) 2021 The NetBSD Foundation, Inc.
+.\" 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.
+.\"
+.\" 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.
+.\"
+.Dd February 26, 2021
+.Dt VCAUDIO 4
+.Os
+.Sh NAME
+.Nm vcaudio
+.Nd Broadcom VideoCore integrated audio device driver
+.Sh SYNOPSIS
+.Cd "vcaudio* at vchiq?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the VideoCore 4 audio interface found on
+Broadcom SoCs used in boards such as the Raspberry Pi.
+.Pp
+Three outputs are supported:
+.Li auto ,
+.Li headphones ,
+and
+.Li hdmi .
+The selected output can be changed using the
+.Li outputs.select
+.Xr mixerctl 1
+variable.
+.Li headphones
+corresponds to the analog 3.5mm jack on the Raspberry Pi.
+.Pp
+The hardware does not support recording.
+.Sh SEE ALSO
+.Xr mixerctl 1 ,
+.Xr audio 4 ,
+.Xr mixer 4
+.Sh HISTORY
+The
+.Nm
+device driver appeared in
+.Nx 7.0 .
+.Sh BUGS
+The playback block size is fixed at 40ms of audio.
+The hardware output format is fixed at stereo 48kHz 16-bit LPCM so is
+not configurable with
+.Xr audiocfg 1 .