NSC(4) UNIX Programmer's Manual NSC(4)
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 pro-
vides 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.
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NSC(4) UNIX Programmer's Manual NSC(4)
Option "Rotate" "CW"
Rotate the display clockwise. This mode is unac-
celerated, and uses the Shadow Frame Buffer layer.
Default: no rotation.
Option "Rotate" "CCW"
Rotate the display counterclockwise. This mode is unac-
celerated, 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 Pnale 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 allo-
cated 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 sig-
nal. Default: no TV.
Option "TV_Output" "SVIDEO"
The selected TV mode output is coded for SVIDEO signal.
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NSC(4) UNIX Programmer's Manual NSC(4)
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: View-
able height. Default: no TV.
XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)
Author: Sarma V. Kolluru
XFree86 Version 4.5.0 3
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