kernel/drivers/video/console/fbcon_rotate.h, branch linux-4.3.y

fbcon: fix rotate upside down crash

2009-08-07T17:39:55Z

Fix the rotate_ud() function not to crash in case of a font which has not a width of multiple by 8: The inner loop of the font pixel copy should not access a bit outside the font memory area. Subtract the shift offset from the font width will prevent this. Signed-off-by: Stefani Seibold Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Code cleanups

2006-01-10T16:01:51Z

- replace kmalloc with kzalloc - remove repeated define (FONTCHHCNT) - remove unneeded local variable (redraw) in ypan_{up|down}_redraw - add and delete cursor timer in fbcon_switch() if old_info != info Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Console rotation fixes

2005-11-28T22:42:23Z

Remove bogus usage of test/set_bit() from fbcon rotation code and just manipulate the bits directly. This fixes an oops on powerpc among others and should be faster. Seems to work fine on the G5 here. Signed-off-by: Benjamin Herrenschmidt Acked-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Console Rotation - Fix wrong shift calculation

2005-11-22T17:13:43Z

The shift value (amount to shift the bitmap so first pixel starts at origin(0,0)) is incorrect. This causes corrupted characters or a kernel crash if fontwidth is not divisible by 8 at 270 degrees, or fontheight not divisible by 8 at 180 degrees. Report and part of the fix contributed by Knut Petersen. Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Console Rotation - Add support for 270-degree rotation

2005-11-09T15:56:34Z

Add support for 270-degree (counterclockwise) rotation of the console. To activate, boot with: fbcon=rotate:3 Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Console Rotation - Add support for 180-degree console rotation

2005-11-09T15:56:34Z

Add support for 180-degree (upside down) rotation of the console. To activate, boot with: fbcon=rotate:2 Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Console Rotation - Add support for 90-degree console rotation

2005-11-09T15:56:34Z

Add support for 90-degree (clockwise) rotation of the console. To activate, boot with: fbcon=rotate:1 Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fbcon: Console Rotation - Add support to rotate font bitmap

2005-11-09T15:56:34Z

Add support to rotate the font bitmap. To save on processing time, the entire fontdata will be rotated on a console switch, then stored in a buffer private to fbcon. To further save on processing, the fontdata will only be rotated if the font has changed or if the angle of rotation has changed. Only a single copy of the rotated fontdata will be kept. Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds