$XFree86: xc/programs/Xserver/hw/xfree86/drivers/nsc/nsc.man,v 1.1 2002/12/10 15:12:23 alanh Exp $
shorthand for double quote that works everywhere.
nsc - Nsc video driver

 "Section \*qDevice\*q"  " Identifier \*q" devname \*q  " Driver \*qnsc\*q"   ...
 EndSection 

nsc is an __xservername__ 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 __xconfigfile__(__filemansuffix__) 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 \*qDevice\*q section.

The following driver Options are supported:

"Option \*qSWCursor\*q \*q" boolean \*q Enable or disable the SW cursor. Default: off.

"Option \*qHWCursor\*q \*q" boolean \*q Enable or disable the HW cursor. Default: on.

"Option \*qNoAccel\*q \*q" boolean \*q Disable or enable acceleration. Default: acceleration is enabled.

"Option \*qNoCompression\*q \*q" boolean \*q Disable or enable compression. Default: compression is enabled.

"Option \*qShadowFB\*q \*q" boolean \*q Enable or disable use of the shadow framebuffer layer. Default: off.

"Option \*qRotate\*q \*qCW\*q" Rotate the display clockwise. This mode is unaccelerated, and uses the Shadow Frame Buffer layer. Default: no rotation.

"Option \*qRotate\*q \*qCCW\*q" Rotate the display counterclockwise. This mode is unaccelerated, and uses the Shadow Frame Buffer layer. Default: no rotation.

"Option \*qFlatPanel\*q \*q" boolean \*q 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 \*qOSMImageBuffers\*q \*q" integer \*q 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 \*qColorKey\*q \*q" integer \*q 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 \*qTV\*q \*qPAL-768x576\*q" Selects the PAL TV display mode 768x576 and the depth is forced to 16 bpp. Default: no TV.

"Option \*qTV\*q \*qPAL-720x576\*q" Selects the PAL TV display mode 720x576 and the depth is forced to 16 bpp. Default: no TV.

"Option \*qTV\*q \*qNTSC-720x480\*q" Selects the NTSC TV display mode 720x480 and the depth is forced to 16 bpp. Default: no TV.

"Option \*qTV\*q \*qNTSC-640x480\*q" Selects the NTSC TV display mode 640x480 and the depth is forced to 16 bpp. Default: no TV.

"Option \*qTV_Output\*q \*qCOMPOSITE\*q" The selected TV mode output is coded for Composite signal. Default: no TV.

"Option \*qTV_Output\*q \*qSVIDEO\*q" The selected TV mode output is coded for SVIDEO signal. Default: no TV.

"Option \*qTV_Output\*q \*qYUV\*q" The selected TV mode output is coded for YUV signal. Default: no TV.

"Option \*qTV_Output\*q \*qSCART\*q" The selected TV mode output is coded for SCART signal. Default: no TV.

"Option \*qTVOverscan\*q \*xx:yy:ww:hh\*q" 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.

__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__) Author: Sarma V. Kolluru