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NSC(4)			   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 en-
	      abled.

       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 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.   De-
	      fault: no	TV.

       Option "TV_Output" "SVIDEO"
	      The  selected  TV	 mode  output is coded for SVIDEO signal.  De-
	      fault: 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

XFree86				 Version 4.7.0				NSC(4)

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

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