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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-12-12 18:43:16 +0100
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-06-20 10:02:54 +0200
commitc5deac3c9b2284a64326e8799dfe7416bc619c02 (patch)
tree4279b885aba3bfd0554ecc026df5254d3c9c6f4d /Documentation
parentd7ad33421863308fe7ddf865737d4d83b64e5b81 (diff)
downloadop-kernel-dev-c5deac3c9b2284a64326e8799dfe7416bc619c02.zip
op-kernel-dev-c5deac3c9b2284a64326e8799dfe7416bc619c02.tar.gz
fbdev: sh_mobile_lcdc: Implement overlays support
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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+What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha
+Date: May 2012
+Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+ This file is only available on fb[0-9] devices corresponding
+ to overlay planes.
+
+ Stores the alpha blending value for the overlay. Values range
+ from 0 (transparent) to 255 (opaque). The value is ignored if
+ the mode is not set to Alpha Blending.
+
+What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode
+Date: May 2012
+Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+ This file is only available on fb[0-9] devices corresponding
+ to overlay planes.
+
+ Selects the composition mode for the overlay. Possible values
+ are
+
+ 0 - Alpha Blending
+ 1 - ROP3
+
+What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position
+Date: May 2012
+Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+ This file is only available on fb[0-9] devices corresponding
+ to overlay planes.
+
+ Stores the x,y overlay position on the display in pixels. The
+ position format is `[0-9]+,[0-9]+'.
+
+What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3
+Date: May 2012
+Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+ This file is only available on fb[0-9] devices corresponding
+ to overlay planes.
+
+ Stores the raster operation (ROP3) for the overlay. Values
+ range from 0 to 255. The value is ignored if the mode is not
+ set to ROP3.
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