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NSC(4)                 FreeBSD Kernel Interfaces Manual                 NSC(4)

NAME
       nsc - Nsc video driver

SYNOPSIS
       Section "Device"
         Identifier "devname"
         Driver "nsc"
         ...
       EndSection

DESCRIPTION
       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.

SUPPORTED HARDWARE
       The nsc driver supports GXLV (5530 companion chip), SC1200, SC1400 and
       GX2 (5535 companion chip).

CONFIGURATION DETAILS
       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.

SEE ALSO
       XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)

AUTHOR
       Author: Sarma V. Kolluru

XFree86                          Version 4.7.0                          NSC(4)

NAME | SYNOPSIS | DESCRIPTION | SUPPORTED HARDWARE | CONFIGURATION DETAILS | SEE ALSO | AUTHOR

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