nsc(4) - NetBSD Manual Pages

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NSC(4)                                                                  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 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 allocated in off-
              screen 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-off-
              set, 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



4.4.0                               XFree86                             NSC(4)