1. 03 Oct, 2006 1 commit
  2. 30 Jun, 2006 1 commit
  3. 10 Jan, 2006 1 commit
  4. 20 Dec, 2005 1 commit
  5. 13 Nov, 2005 1 commit
    • Antonino A. Daplas's avatar
      [PATCH] fbdev: fix module dependency loop · ab767201
      Antonino A. Daplas authored
      
      
      Exporting struct fb_display produces this warning error on depmod:
      
      WARNING: Module
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ud.ko
      ignored, due to loop
      WARNING: Module
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_rotate.ko
      ignored, due to loop
      WARNING: Module
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_cw.ko
      ignored, due to loop
      WARNING: Module
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon_ccw.ko
      ignored, due to loop
      WARNING: Module
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/fbcon.ko ignored,
      due to loop
      WARNING: Loop detected:
      /lib/modules/2.6.14-mm2/kernel/drivers/video/console/bitblit.ko needs
      Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      ab767201
  6. 09 Nov, 2005 2 commits
    • Antonino A. Daplas's avatar
      [PATCH] fbcon: Console Rotation - Add support for 180-degree console rotation · 33ee8297
      Antonino A. Daplas authored
      
      
      Add support for 180-degree (upside down) rotation of the console.  To
      activate, boot with:
      
      fbcon=rotate:2
      Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      33ee8297
    • Antonino A. Daplas's avatar
      [PATCH] fbcon: Console Rotation - Prepare fbcon for console rotation · e4fc2761
      Antonino A. Daplas authored
      
      
      This patch series implements generic code to rotate the console at 90, 180,
      and 270 degrees. The implementation is completely done in the framebuffer
      console level, thus no changes to the framebuffer layer or to the drivers
      are needed.
      
      Console rotation is required by some Sharp-based devices where the natural
      orientation of the display is not at 0 degrees. Also, users that have
      displays that can pivot will benefit by having a console in portrait mode
      if they so desire.
      
      The choice to implement the code in the console layer rather than in the
      framebuffer layer is due to the following reasons:
      
      - it's fast
      - it does not require driver changes
      - it can coexist with devices that can rotate the display at the hardware level
      - it complements graphics applications that can do display rotation
      
      The changes to core fbcon are minimal-- recognition of the console
      rotation angle so it can swap directions, origins and axes (xres vs yres,
      xpanstep vs ypanstep, xoffset vs yoffset, etc) and storage of the rotation
      angle per display. The bulk of the code that does the actual drawing to the
      screen are placed in separate files. Each angle of rotation has separate
      methods (bmove, clear, putcs, cursor, update_start which is derived from
      update_var, and clear_margins).  To mimimize processing time, the fontdata
      are pre-rotated at each console switch (only if the font or the angle has
      changed).
      
      The option can be compiled out (CONFIG_FRAMEBUFFER_CONSOLE_ROTATION = n) if
      rotation is not needed.
      
      Choosing the rotation angle can be done in several ways:
      
      1. boot option fbcon=rotate:n, where
           n = 0 - normal
           n = 1 - 90 degrees (clockwise)
           n = 2 - 180 degrees (upside down)
           n = 3 - 270 degrees (counterclockwise)
      
      2. echo n > /sys/class/graphics/fb[num]/con_rotate
      
           where n is the same as described above. It sets the angle of rotation
      of the current console
      
      3 echo n > /sys/class/graphics/fb[num]/con_rotate_all
      
           where n is the same as described above. Globally sets the angle of
      rotation.
      
      GOTCHAS:
      
      	The option, especially at angles of 90 and 270 degrees, will exercise
      the least used code of drivers.  Namely, at these angles, panning is done
      in the x-axis, so it can reveal bugs in the driver if xpanstep is set
      incorrectly. A workaround is to set xpanstep = 0.
      
      	Secondly, at these angles, the framebuffer memory access can be
      unaligned if (fontheight * bpp) % 32 ~= 0 which can reveal bugs in the drivers
      imageblit, fillrect and copyarea functions.  (I think cfbfillrect may have
      this buglet). A workaround is to use a standard 8x16 font.
      
      Speed:
      
      	The scrolling speed difference between 0 and 180 degrees is minimal,
      somewhere areound 1-2%.  At 90 or 270 degress, speed drops down to a vicinity
      of 30-40%. This is understandable because the blit direction is across the
      framebuffer "direction." Scrolling will be helped at these angles if xpanstep
      is not equal to zero, use of 8x16 fonts, and setting xres_virtual >= xres * 2.
      
      Note: The code is tested on little-endian only, so I don't know if it will
      work in big-endian. Please let me know, it will take only less than a minute
      of your time.
      
      This patch prepares fbcon for console rotation and contains the following
      changes:
      
      - add rotate field in struct fbcon_ops to keep fbcon's current rotation
        angle
      
      - add con_rotate field in struct display to store per-display rotation angle
      
      - create a private copy of the current var to fbcon.  This will prevent
        fbcon from directly manipulating info->var, especially the fields xoffset,
        yoffset and vmode.
      
      - add ability to swap pertinent axes (xres, yres; xpanstep, ypanstep; etc)
        depending on the rotation angle
      
      - change global update_var() (function that sets the screen start address)
        as an fbcon method update_start.  This is required because the axes, start
        offset, and/or direction can be reversed depending on the rotation angle.
      
      - add fbcon method rotate_font() which will rotate each character bitmap to
        the correct angle of rotation.
      
      - add fbcon boot option 'rotate' to select the angle of rotation at bootime.
         Currently does nothing until all patches are applied.
      Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      e4fc2761
  7. 07 Nov, 2005 1 commit
    • Antonino A. Daplas's avatar
      [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon · c465e05a
      Antonino A. Daplas authored
      
      
      According to Jon Smirl, filling in the field fb_cursor with soft_cursor for
      drivers that do not support hardware cursors is redundant.  The soft_cursor
      function is usable by all drivers because it is just a wrapper around
      fb_imageblit.  And because soft_cursor is an fbcon-specific hook, the file is
      moved to the console directory.
      
      Thus, drivers that do not support hardware cursors can leave the fb_cursor
      field blank.  For drivers that do, they can fill up this field with their own
      version.
      
      The end result is a smaller code size.  And if the framebuffer console is not
      loaded, module/kernel size is also reduced because the soft_cursor module will
      also not be loaded.
      Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      c465e05a
  8. 09 Sep, 2005 3 commits
  9. 21 Jun, 2005 2 commits
  10. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4