fbdev: sh_mobile_lcdc: Implement overlays support (c5deac3c) · Commits · EulixOS / Software / Kernel

Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb

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Original line number	Diff line number	Diff line
		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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Original line number	Diff line number	Diff line
		@@ -166,6 +166,12 @@ struct sh_mobile_lcdc_bl_info {
		int (*get_brightness)(void);
		};

		struct sh_mobile_lcdc_overlay_cfg {
		int fourcc;
		unsigned int max_xres;
		unsigned int max_yres;
		};

		struct sh_mobile_lcdc_chan_cfg {
		int chan;
		int fourcc;
		@@ -186,6 +192,7 @@ struct sh_mobile_lcdc_chan_cfg {
		struct sh_mobile_lcdc_info {
		int clock_source;
		struct sh_mobile_lcdc_chan_cfg ch[2];
		struct sh_mobile_lcdc_overlay_cfg overlays[4];
		struct sh_mobile_meram_info *meram_dev;
		};