Table of Contents
nsc - Nsc video driver
Section "Device"
Identifier "devname"
Driver "nsc"
...
EndSection
nsc is an XFree86 driver for National Semiconductors GEODE processor
family. It uses the DURANGO kit provided by National Semiconductor. The driver
is accelerated, and provides support for the following framebuffer depths:
8, 16 and 24.
The nsc driver supports GXLV (5530 companion
chip), SC1200, SC1400 and GX2 (5535 companion chip).
Please
refer to XF86Config(5)
for general configuration details. This section
only covers configuration details specific to this driver.
The driver will
auto-detect the amount of video memory present for all chips. If the amount
of memory is detected incorrectly, the actual amount of video memory should
be specified with a VideoRam entry in the config file "Device" section.
The following driver Options are supported:
- Option "SWCursor" "boolean"
- Enable or disable the SW cursor. Default: off.
- Option "HWCursor" "boolean"
- Enable or disable the HW cursor. Default: on.
- Option "NoAccel" "boolean"
- Disable or enable acceleration. Default: acceleration is enabled.
- Option
"NoCompression" "boolean"
- Disable or enable compression. Default: compression
is enabled.
- Option "ShadowFB" "boolean"
- Enable or disable use of the shadow
framebuffer layer. Default: off.
- Option "Rotate" "CW"
- Rotate the display
clockwise. This mode is unaccelerated, and uses the Shadow Frame Buffer
layer. Default: no rotation.
- Option "Rotate" "CCW"
- Rotate the display counterclockwise.
This mode is unaccelerated, and uses the Shadow Frame Buffer layer. Default:
no rotation.
- Option "FlatPanel" "boolean"
- This enables the FlatPanel display
unit. The FlatPanel depends on the BIOS to do the Panel h/w initialization.
In GX2 based platforms with TFT part Flatpanel is enabled, and on CRT part
is disabled. Default: off.
- Option "OSMImageBuffers" "integer"
- This sets the
number of scanline buffers to be allocated in offscreen memory for acceleration.
This can take any value 0 will disable the allocation. Disabled if cannot
allocate requested scanline memory. Default: 20.
- Option "ColorKey" "integer"
- This sets the default pixel value for the YUV video overlay key. Default:
0.
The following Options are supported only on SC1200 based platforms:
- Option "TV" "PAL-768x576"
- Selects the PAL TV display mode 768x576 and the
depth is forced to 16 bpp. Default: no TV.
- Option "TV" "PAL-720x576"
- Selects
the PAL TV display mode 720x576 and the depth is forced to 16 bpp. Default:
no TV.
- Option "TV" "NTSC-720x480"
- Selects the NTSC TV display mode 720x480
and the depth is forced to 16 bpp. Default: no TV.
- Option "TV" "NTSC-640x480"
- Selects the NTSC TV display mode 640x480 and the depth is forced to 16
bpp. Default: no TV.
- Option "TV_Output" "COMPOSITE"
- The selected TV mode
output is coded for Composite signal. Default: no TV.
- Option "TV_Output"
"SVIDEO"
- The selected TV mode output is coded for SVIDEO signal. Default:
no TV.
- Option "TV_Output" "YUV"
- The selected TV mode output is coded for
YUV signal. Default: no TV.
- Option "TV_Output" "SCART"
- The selected TV mode
output is coded for SCART signal. Default: no TV.
- Option "TVOverscan" x:yy:ww:hh"
- This option will let only the viewable display area smaller to be able
to view on TV. The parameters xx: X-offset, yy: Y-offset, ww: Viewable width,
hh: Viewable height. Default: no TV.
XFree86(1)
, XF86Config(5)
, xf86config(1)
,
Xserver(1)
, X(7)
Author: Sarma V. Kolluru
Table of Contents