1 files changed, 75 insertions, 0 deletions
diff --git a/static/netbsd/man4/man4.evbarm/vchiq.4 b/static/netbsd/man4/man4.evbarm/vchiq.4
new file mode 100644
index 00000000..71414001
--- /dev/null
+++ b/static/netbsd/man4/man4.evbarm/vchiq.4
@@ -0,0 +1,75 @@
+.\" $NetBSD: vchiq.4,v 1.3 2021/12/11 20:42:48 wiz 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 December 11, 2021
+.Dt VCHIQ 4
+.Os
+.Sh NAME
+.Nm vchiq
+.Nd Broadcom VideoCore Host Interface device driver
+.Sh SYNOPSIS
+.Cd "vchiq* at simplebus?"
+.Cd "vchiq* at acpi?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the VideoCore 4 GPU messaging interface in
+Broadcom SoCs found in boards such as the Raspberry Pi.
+.Pp
+Libraries in pkgsrc provide OpenGL ES support and video decoding acceleration
+for the VideoCore 4 using the
+.Pa /dev/vchiq
+interface exposed to userland.
+.Pp
+Audio output support is provided by the kernel through
+.Xr vcaudio 4 ,
+which uses this messaging interface to the GPU internally.
+.Pp
+Debugging information may be obtained reading the device with
+.Xr cat 1 .
+eg:
+.Dl cat /dev/vchiq
+.Pp
+Information such as slots and usage by particular functions of the VideoCore 4
+device are displayed.
+.Sh SEE ALSO
+.Xr cat 1 ,
+.Xr acpi 4 ,
+.Xr bcmgpio 4 ,
+.Xr vcaudio 4 ,
+.Pa pkgsrc/misc/raspberrypi-userland ,
+.Pa pkgsrc/multimedia/omxplayer
+.Sh HISTORY
+The
+.Nm
+device driver appeared in
+.Nx 7.0 .
+.Sh BUGS
+.Pa /dev/vchiq
+does not follow the standard model for graphical acceleration on Unix-like
+systems, so applications have to be specially built to take advantage of it.
+The interface to userland also cannot be exposed by 64-bit or big endian
+kernels due to problems in the upstream Broadcom code.