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96fe6a2109
linux/drivers/video
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Antonino A. Daplas 96fe6a2109 [PATCH] fbdev: Add VESA Coordinated Video Timings (CVT) support 
The Coordinated Video Timings (CVT) is the latest standard approved by VESA
concerning video timings generation.  It addresses the limitation of GTF which
is designed mainly for CRT displays.  CRT's have a high blanking requirement
(as much as 25% of the horizontal frame length) which artificially increases
the pixelclock.  Digital displays, on the other hand, needs to conserve the
pixelclock as much as possible.  The GTF also does not take into account the
different aspect ratios in its calculation.

The new function added is fb_find_mode_cvt().  It is called by fb_find_mode()
if it recognizes a mode option string formatted for CVT.  The format is:

<xres>x<yres>[M][R][-<bpp>][<at-sign><refresh>][i][m]

The 'M' tells the function to calculate using CVT.  On it's own, it will
compute a timing for CRT displays at 60Hz.  If the 'R' is specified, 'reduced
blanking' computation will be used, best for flatpanels.  The 'i' and the 'm'
is for 'interlaced mode' and 'with margins' respectively.

To determine if CVT was used, check for dmesg for something like this:

CVT Mode - <pix>M<n>[-R], ie: .480M3-R  (800x600 reduced blanking)

where: pix - product of xres and yres, in MB
    M   - is a CVT mode
    n   - the aspect ratio (3 - 4:3; 4 - 5:4; 9 - 16:9, 15:9; A - 16:10)
    -R   - reduced blanking

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 14:03:39 -07:00
..
aty [PATCH] radeonfb: Only request resources we need 2005-09-09 13:58:02 -07:00
backlight [PATCH] Support powering sharp zaurus sl-5500 LCD up and down 2005-09-07 16:57:20 -07:00
console [PATCH] framebuffer: bit_putcs() optimization for 8x* fonts 2005-09-09 13:58:02 -07:00
geode [PATCH] fbdev: geode updates 2005-09-09 13:57:59 -07:00
i810 [PATCH] fbdev: prevent drivers that have hardware cursors from calling software cursor code 2005-09-09 13:57:59 -07:00
intelfb [PATCH] fbdev: prevent drivers that have hardware cursors from calling software cursor code 2005-09-09 13:57:59 -07:00
kyro Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
logo [PATCH] m32r: framebuffer device support 2005-07-07 18:24:11 -07:00
matrox [PATCH] matroxfb: read MGA PInS data on PowerPC 2005-09-09 13:58:01 -07:00
nvidia [PATCH] fbdev: Fix greater than 1 bit monochrome color handling 2005-09-09 13:58:00 -07:00
riva [PATCH] PCI: remove CONFIG_PCI_NAMES 2005-09-08 14:57:23 -07:00
savage [PATCH] better error handing in savagefb_probe 2005-09-09 13:58:01 -07:00
sis [PATCH] sisfb update 2005-09-09 13:58:01 -07:00
68328fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acornfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acornfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amba-clcd.c [PATCH] ARM: IntegratorCP: 16bpp is RGB565 not RGB555 2005-04-30 23:28:47 +01:00
amifb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
arcfb.c [PATCH] Framebuffer driver for Arc LCD board 2005-06-21 19:07:41 -07:00
asiliantfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atafb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
au1100fb.c [PATCH] au1100fb: convert to C99 inits. 2005-06-25 16:24:57 -07:00
au1100fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bt431.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bt455.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bw2.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
c2p.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
c2p.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cfbcopyarea.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cfbfillrect.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cfbimgblt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cg3.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cg6.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cg14.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
chipsfb.c [PATCH] swsusp: switch pm_message_t to struct 2005-09-05 00:06:16 -07:00
cirrusfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
clps711xfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
controlfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
controlfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyber2000fb.c [PATCH] ARM: Cleanup kmalloc in cyber2000fb 2005-05-03 12:23:56 +01:00
cyber2000fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyberfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyberfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyblafb.c [PATCH] framebuffer: new driver for cyberblade/i1 graphics core 2005-09-09 13:58:02 -07:00
dnfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
edid.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
epson1355fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fbcmap.c [PATCH] fbdev: update info->cmap when setting cmap from user-/kernelspace. 2005-07-27 16:26:19 -07:00
fbcvt.c [PATCH] fbdev: Add VESA Coordinated Video Timings (CVT) support 2005-09-09 14:03:39 -07:00
fbmem.c [PATCH] fbdev: Add VESA Coordinated Video Timings (CVT) support 2005-09-09 14:03:39 -07:00
fbmon.c [PATCH] fbdev: Resurrect hooks to get EDID from firmware 2005-09-09 13:57:59 -07:00
fbsysfs.c [PATCH] Display name of fbdev device 2005-07-31 12:50:46 -07:00
ffb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fm2fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
g364fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gbefb.c [PATCH] Driver Core: drivers/usb/input/aiptek.c - drivers/zorro/zorro-sysfs.c: update device attribute callbacks 2005-06-20 15:15:35 -07:00
hgafb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hitfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hpfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
igafb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
imsttfb.c [PATCH] imsttfb missing iomem annotations 2005-04-26 07:43:42 -07:00
imxfb.c [PATCH] ARM: 2687/1: i.MX framebuffer: make dmacr register platform configurable 2005-07-17 20:15:36 +01:00
imxfb.h [PATCH] ARM: 2687/1: i.MX framebuffer: make dmacr register platform configurable 2005-07-17 20:15:36 +01:00
Kconfig [PATCH] framebuffer: new driver for cyberblade/i1 graphics core 2005-09-09 13:58:02 -07:00
leo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
macfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
macmodes.c [PATCH] macmodes: needs a license 2005-06-14 07:19:35 -07:00
macmodes.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] fbdev: Add VESA Coordinated Video Timings (CVT) support 2005-09-09 14:03:39 -07:00
maxinefb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
modedb.c [PATCH] fbdev: Add VESA Coordinated Video Timings (CVT) support 2005-09-09 14:03:39 -07:00
neofb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
offb.c [PATCH] Separate pci bits out of struct device_node 2005-09-09 22:11:38 +10:00
p9100.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
platinumfb.c [PATCH] openfirmware: generate device table for userspace 2005-07-06 12:55:20 -07:00
platinumfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pm2fb.c [PATCH] clean up inline static vs static inline 2005-07-27 16:26:20 -07:00
pm3fb.c [PATCH] pm3fb typo fix 2005-06-21 19:07:40 -07:00
pmag-aa-fb.c [PATCH] DEC PMAG AA framebuffer update 2005-09-05 00:06:03 -07:00
pmag-ba-fb.c [PATCH] DEC PMAG BA frame buffer update 2005-09-05 00:06:03 -07:00
pmagb-b-fb.c [PATCH] DEC PMAGB B framebuffer update 2005-09-05 00:06:03 -07:00
pvr2fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pxafb.c [PATCH] ARM: 2846/1: proper handling of CKEN for pxafb 2005-08-10 16:45:13 +01:00
pxafb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
q40fb.c [PATCH] Remove non-arch consumers of asm/segment.h 2005-09-07 16:57:34 -07:00
radeonfb.c [PATCH] disable debug info in radeonfb old driver 2005-08-18 12:53:57 -07:00
retz3fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
retz3fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
s1d13xxxfb.c [PATCH] swsusp: fix remaining u32 vs. pm_message_t confusion 2005-09-05 00:06:15 -07:00
S3triofb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sa1100fb.c [PATCH] ARM: Make sa1100fb_display_dma_period() an inline function 2005-08-07 14:20:26 +01:00
sa1100fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sbuslib.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sbuslib.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sgivwfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
skeletonfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
softcursor.c [PATCH] fbdev: stack reduction 2005-06-21 19:07:41 -07:00
sstfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sticore.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stifb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tcx.c [SPARC]: TCX Framebuffer fixes 2005-04-24 20:39:15 -07:00
tdfxfb.c [PATCH] Clean-up and bug fix for tdfxfb framebuffer size detection 2005-05-01 08:59:25 -07:00
tgafb.c [PATCH] Fix tgafb.c compile failure 2005-04-21 14:09:42 -07:00
tridentfb.c [PATCH] framebuffer: new driver for cyberblade/i1 graphics core 2005-09-09 13:58:02 -07:00
tx3912fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
valkyriefb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
valkyriefb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vesafb.c [PATCH] vesafb: Add blanking support 2005-09-09 13:57:58 -07:00
vfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vga16fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vgastate.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
virgefb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
virgefb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
w100fb.c [PATCH] w100fb: Rewrite for platform independence 2005-09-07 16:57:53 -07:00
w100fb.h [PATCH] w100fb: Rewrite for platform independence 2005-09-07 16:57:53 -07:00