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linux-stable-rt/Documentation/fb/cyblafb/fb.modes

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[PATCH] framebuffer: new driver for cyberblade/i1 graphics core This is a framebuffer driver for the Cyberblade/i1 graphics core. Currently tridenfb claims to support the cyberblade/i1 graphics core. This is of very limited truth. Even vesafb is faster and provides more working modes and a much better quality of the video signal. There is a great number of bugs in tridentfb ... but most often it is impossible to decide if these bugs are real bugs or if fixing them for the cyberblade/i1 core would break support for one of the other supported chips. Tridentfb seems to be unmaintained,and documentation for most of the supported chips is not available. So "fixing" cyberblade/i1 support inside of tridentfb was not an option, it would have caused numerous if(CYBERBLADEi1) else ... cases and would have rendered the code to be almost unmaintainable. A first version of this driver was published on 2005-07-31. A fix for a bug reported by Jochen Hein was integrated as well as some changes requested by Antonino A. Daplas. A message has been added to tridentfb to inform current users of tridentfb to switch to cyblafb if the cyberblade/i1 graphics core is detected. This patch is one logical change, but because of the included documentation it is bigger than 70kb. Therefore it is not sent to lkml and linux-fbdev-devel, Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Cc: Muli Ben-Yehuda <mulix@mulix.org> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-10 04:04:56 +08:00
#
# Sample fb.modes file
#
# Provides an incomplete list of working modes for
# the cyberblade/i1 graphics core.
#
# The value 4294967256 is used instead of -40. Of course, -40 is not
# a really reasonable value, but chip design does not always follow
# logic. Believe me, it's ok, and it's the way the BIOS does it.
#
# fbset requires 4294967256 in fb.modes and -40 as an argument to
# the -t parameter. That's also not too reasonable, and it might change
# in the future or might even be differt for your current version.
#
mode "640x480-50"
geometry 640 480 640 3756 8
timings 47619 4294967256 24 17 0 216 3
endmode
mode "640x480-60"
geometry 640 480 640 3756 8
timings 39682 4294967256 24 17 0 216 3
endmode
mode "640x480-70"
geometry 640 480 640 3756 8
timings 34013 4294967256 24 17 0 216 3
endmode
mode "640x480-72"
geometry 640 480 640 3756 8
timings 33068 4294967256 24 17 0 216 3
endmode
mode "640x480-75"
geometry 640 480 640 3756 8
timings 31746 4294967256 24 17 0 216 3
endmode
mode "640x480-80"
geometry 640 480 640 3756 8
timings 29761 4294967256 24 17 0 216 3
endmode
mode "640x480-85"
geometry 640 480 640 3756 8
timings 28011 4294967256 24 17 0 216 3
endmode
mode "800x600-50"
geometry 800 600 800 3221 8
timings 30303 96 24 14 0 136 11
endmode
mode "800x600-60"
geometry 800 600 800 3221 8
timings 25252 96 24 14 0 136 11
endmode
mode "800x600-70"
geometry 800 600 800 3221 8
timings 21645 96 24 14 0 136 11
endmode
mode "800x600-72"
geometry 800 600 800 3221 8
timings 21043 96 24 14 0 136 11
endmode
mode "800x600-75"
geometry 800 600 800 3221 8
timings 20202 96 24 14 0 136 11
endmode
mode "800x600-80"
geometry 800 600 800 3221 8
timings 18939 96 24 14 0 136 11
endmode
mode "800x600-85"
geometry 800 600 800 3221 8
timings 17825 96 24 14 0 136 11
endmode
mode "1024x768-50"
geometry 1024 768 1024 2815 8
timings 19054 144 24 29 0 120 3
endmode
mode "1024x768-60"
geometry 1024 768 1024 2815 8
timings 15880 144 24 29 0 120 3
endmode
mode "1024x768-70"
geometry 1024 768 1024 2815 8
timings 13610 144 24 29 0 120 3
endmode
mode "1024x768-72"
geometry 1024 768 1024 2815 8
timings 13232 144 24 29 0 120 3
endmode
mode "1024x768-75"
geometry 1024 768 1024 2815 8
timings 12703 144 24 29 0 120 3
endmode
mode "1024x768-80"
geometry 1024 768 1024 2815 8
timings 11910 144 24 29 0 120 3
endmode
mode "1024x768-85"
geometry 1024 768 1024 2815 8
timings 11209 144 24 29 0 120 3
endmode
mode "1280x1024-50"
geometry 1280 1024 1280 2662 8
timings 11114 232 16 39 0 160 3
endmode
mode "1280x1024-60"
geometry 1280 1024 1280 2662 8
timings 9262 232 16 39 0 160 3
endmode
mode "1280x1024-70"
geometry 1280 1024 1280 2662 8
timings 7939 232 16 39 0 160 3
endmode
mode "1280x1024-72"
geometry 1280 1024 1280 2662 8
timings 7719 232 16 39 0 160 3
endmode
mode "1280x1024-75"
geometry 1280 1024 1280 2662 8
timings 7410 232 16 39 0 160 3
endmode
mode "1280x1024-80"
geometry 1280 1024 1280 2662 8
timings 6946 232 16 39 0 160 3
endmode
mode "1280x1024-85"
geometry 1280 1024 1280 2662 8
timings 6538 232 16 39 0 160 3
endmode