Hi!
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+ color depth:8 bpp, 16 bpp, 32 bpp
+
+ Support 2 D hardware accelerator for kernel 2.6.xx
Supports? . at end of line? Remove 2.6 reference as it will work in
2.7+, too, and this docs is not going into 2.4, anyway?
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+[Using the viafb module]
+-- -- --------------------
+ Start viafb with default settings,
+ #modprobe viafb
+
+ Start viafb with with user options,
+ #modprobe viafb mode=800x600 via_fb_bpp=16 refresh=60
+ active_dev=CRT+DVI dvi_port = DVP1 mode1 = 1024 x768
+ via_fb_bpp1 = 16 refresh1 = 60 SAMM_ON = 1
+
+ mode:
+ 640 x480(default)
+ 720 x480
+ 800 x600
+ 1024 x768
+ ......
+
+ via_fb_bpp:
+ 8, 16, 32(default:32)
+
+ refresh:
+ 60, 75, 85, 100, 120(default:60)
+
+ lcd_dsp_method:
+ 0 : expandsion(default)
expansion?
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+ 1 : centering
+
+ lcd_mode:
+ 0 : OPEN LDI(default)
+ 1 : SPWG
This needs to be explained, I guess.
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+ via_fb_accel:
+ 0 : No 2 D Hardware Acceleration(default)
+ 1 : 2 D Hardware Acceleration
Why does it default to no acceleration?
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+ SAMM_ON:
+ 0 : SAMM_ON disable(default)
+ 1 : SAMM_ON enable
...needs better explanation.
+ second_size:
+ This option is used to set second device memory size(MB) in
SAMM case.
+ The minimal size is 16.
+
+ EPIA_DVI:
+ This option is used to enable DVI on EPIA - M
+ 0 : No DVI on EPIA - M(default)
+ 1 : DVI on EPIA - M
+
+ BusWidth:
+ When using 24 - Bit Bus Width Digital Interface, this option
should be set.
+ 12: 12-Bit LVDS or 12-Bit TMDS(default)
+ 24: 24-Bit LVDS or 24-Bit TMDS
+
+ LCDDualEdge:
+ When using Dual Edge Panel, this option should be set.
+ 0 : No Dual Edge Panel(default)
+ 1 : Dual Edge Panel
+
+ video_dev:
+ This option is used to specify video output devices(CRT, DVI,
LCD) for duoview case.
+ For example:
+ To output video on DVI, we should use:
+ modprobe viafb video_dev = DVI...
+
+ lcd_port:
+ This option is used to specify lcd output port,
+ available values are "DVP0" "DVP1" "DFP_HIGHLOW" "DFP_HIGH"
+ "DFP_LOW", for external LCD + external DVI on
CX700(External LCD is on DVP0),
+ we should use:
+ modprobe viafb lcd_port = DVP0...
+
+Note:
notes?
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+ 1. CRT may not display properly for DuoView CRT & DVI display at
+ the "640x480" PAL mode with DVI overscan enabled.
+ 2. When SAMM is enable, mode and mode1, via_fb_bpp and via_fb_bpp1,
enabled?
+ refresh and refresh1 can be different.
+ 3. When console is depend on viafbinfo1, dynamically change
depend -- check spelling.
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+[Bootup with viafb]:
+--------------------
+ Add the following line to your lilo.conf:
+ append = "video=viafb:mode:1024x768,via_fb_bpp:32,refresh:85"
Hmm, who uses lilo these days?
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diff -Nur a/drivers/video/Kconfig b/drivers/video/Kconfig
--- a/drivers/video/Kconfig 2008-05-06 07:05:59.000000000 -0400
+++ b/drivers/video/Kconfig 2008-05-06 07:06:37.000000000 -0400
@@ -1501,6 +1501,24 @@
(315/H/PRO, 55x, 650, 651, 740, 330, 661, 741, 760, 761) as
well
as XGI V3XT, V5, V8 and Z7.
+config FB_VIA
+ tristate "VIA UniChrome (Pro) and Chrome9 display support"
+ depends on FB && PCI
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ select FB_SOFT_CURSOR
+ help
+ This is the frame buffer device driver for Graphics chips of
VIA
+ UniChrome (Pro) Family
(CLE266,PM800/CN400,P4M800CE/P4M800Pro/
+ CN700/VN800,CX700/VX700,P4M890) and Chrome9 Family
(K8M890,CN896
+ /P4M900,VX800)
+
+ Say Y if you have a VIA UniChrome graphics board.
+
+ To compile this driver as a module, choose M here: the
+ module will be called viafb.
Strange indentation.
+ } else {
+ /* Diable VQ */
disable?
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+ switch (chip_info.gfx_chip_name) {
+ case UNICHROME_K8M890:
+ case UNICHROME_P4M900:
+ MMIO_OUT32(0x41c, 0x00100000);
+ MMIO_OUT32(0x420, 0x74301000);
+ break;
Can we get symbolic names and comments here?
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+ case IGA1:
+ default:
+ temp &= 0x7FFFFFFF;
+ }
+ MMIO_OUT32(VIA_REG_CURSOR_MODE, temp); }
Check indentation.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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