.\" shorthand for double quote that works everywhere.
.ds q \N'34'
.TH SUNXIFB __drivermansuffix__ __vendorversion__
.SH NAME
sunxifb \- video driver for the devices based on Allwinner A10/A13 SoC
.SH SYNOPSIS
.nf
.B "Section \*qDevice\*q"
.BI "  Identifier \*q"  devname \*q
.B  "  Driver \*qsunxifb\*q"
\ \ ...
.B EndSection
.fi
.SH DESCRIPTION
.B sunxifb
is an __xservername__ driver for the devices based on Allwinner A10/A13 SoC,
derived from
.B fbdev
driver.
With the regards to 2D graphics, currently it only supports sofware rendering.
However at least it tries to let the SIMD (ARM NEON) accelerated code from the
.B pixman
library run at full speed without any unnecessary overhead. The recommended
framebuffer color depths are 16 (RGB565) and 24 (XRGB8888), the other color
depths may be supported too. Multi-head configurations are supported.
.SH SUPPORTED HARDWARE
The 
.B sunxifb
driver supports all hardware where a framebuffer driver is available and
uses the os-specific submodule fbdevhw(__drivermansuffix__) to talk
to the kernel
device driver.  Currently a fbdevhw module is available for linux.
Additionally it is intended to use some of the display controller features
from Allwinner A10/A13 SoC and provide the necessary DRI2 integration with
the proprietary OpenGL ES binary blobs for Mali400 GPU (if they are installed
in the system). The part related to Mali400 GPU support is derived from
the vendor provided open source
.B xf86-video-mali
driver.
.SH CONFIGURATION DETAILS
Please refer to __xconfigfile__(__filemansuffix__) for general configuration
details.  This section only covers configuration details specific to
this driver.
.PP
For this driver it is not required to specify modes in the screen 
section of the config file.  The
.B sunxifb
driver can pick up the currently used video mode from the framebuffer 
driver and will use it if there are no video modes configured.
.PP
The following driver 
.B Options
are supported:
.TP
.BI "Option \*qfbdev\*q \*q" string \*q
The framebuffer device to use. Default: /dev/fb0.
.TP
.BI "Option \*qShadowFB\*q \*q" boolean \*q
Enable or disable use of the shadow framebuffer layer.  Default: on.
.TP
.BI "Option \*qRotate\*q \*q" string \*q
Enable rotation of the display. The supported values are "CW" (clockwise,
90 degrees), "UD" (upside down, 180 degrees) and "CCW" (counter clockwise,
270 degrees). Implies use of the shadow framebuffer layer.   Default: off.
.SH "SEE ALSO"
__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), Xserver(__appmansuffix__),
X(__miscmansuffix__), fbdevhw(__drivermansuffix__)
.SH AUTHORS
Authors include: Gerd Knorr, Michel D\(:anzer, Geert Uytterhoeven, Siarhei Siamashka