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* [ATYFB]: Fix onboard video on SPARC Blade 100 for 2.6.{13,14,15}Luis F. Ortiz2006-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have recently been switching from using 2.4.32 on my trusty old Sparc Blade 100 to using 2.6.15 . Some of the problems I ran into were distorted video when the console was active (missing first character, skipped dots) and when running X windows (colored snow, stripes, missing pixels). A quick examination of the 2.6 versus 2.4 source for the ATY driver revealed alot of changes. A closer look at the code/data for the 64GR/XL chip revealed two minor "typos" that the rewriter(s) of the code made. The first is a incorrect clock value (230 .vs. 235) and the second is a missing flag (M64F_SDRAM_MAGIC_PLL). Making both these changes seems to have fixed my problem. I tend to think the 235 value is the correct one, as there is a 29.4 Mhz clock crystal close to the video chip and 235.2 (29.4*8) is too close to 235 to make it a coincidence. The flag for M64F_SDRAM_MAGIC_PLL was dropped during the changes made by adaplas in file revision 1.72 on the old bitkeeper repository. The change relating to the clock rate has been there forever, at least in the 2.6 tree. I'm not sure where to look for the old 2.5 tree or if anyone cares when it happened. On SPARC Blades 100's, which use the ATY MACH64GR video chipset, the clock crystal frequency is 235.2 Mhz, not 230 Mhz. The chipset also requires the use of M64F_SDRAM_MAGIC_PLL in order to setup the PLL properly for the DRAM. Signed-off-by: Luis F. Ortiz <lfo@Polyad.Org> Signed-off-by: David S. Miller <davem@davemloft.net>
* s/retreiv/retriev/gMatt Mackall2006-01-03
| | | | | | | As everyone knows, the rule is: "i before e.. um.. always." Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [VIDEO] sbuslib: Disallow private mmaps.David S. Miller2005-12-24
| | | | | | | | The COW semantics just do not make any sense especially with the physically discontiguous I/O mappings possible here. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: introduce a SPARC Kconfig symbolAdrian Bunk2005-12-23
| | | | | | | | | | Introduce a Kconfig symbol SPARC that is defined on both the sparc and sparc64 architectures. This symbol makes some dependencies more readable. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] Fix framebuffer console upside-down ywrap scrollingKnut Petersen2005-12-20
| | | | | | | | | | | | | | | | | | Whenever ywrap scrolling is selected together with 180 degree screen rotation, 2.6.15-rc6 and earlier versions are broken. fb_pan_display() expects non-negative yoffsets, but ud_update_start() calls it with yoffsets down to -(yres - font height). This patch transforms yoffset to the correct range 0 ... vyres-1. Some obviously unneeded parentheses are removed, too. Verified with cyblafb, should be applied before 2.6.15-final because it does fix the framebuffer rotation code introduced early in the 2.6.15 release cycle. Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] intelfb: Fix oops when changing video modeAntonino A. Daplas2005-12-20
| | | | | | | | | | | | Reported by: janis huang (Bugzilla Bug 5747) Fix on oops in intelfb. Not sure what's happening, looks like dinfo->name pointer is invalidated after initialization. Remove intelfb_get_fix, it's not needed and move the majority of the code to the initialization routine. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] intelfb: Fix freeing of nonexistent resourceAntonino A. Daplas2005-12-20
| | | | | | | Fix intelfb trying to free a non-existent resource in its error path. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] arcfb __user annotationsAl Viro2005-12-15
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cyber2000fb.c __iomem annotationsAl Viro2005-12-15
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: make pxafb more robust to errors with CONFIG_FB_PXA_PARAMETERSOle Reinhardt2005-12-14
| | | | | | | | | | | pxafb.c runs into an oops if CONFIG_FB_PXA_PARAMETERS is enabled and no parameters are set in command line. The following patch avoids this problem. Signed-off-by: Nicolas Pitre <nico@cam.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: Fix incorrect unaligned access in little-endian machinesAntonino A. Daplas2005-12-13
| | | | | | | | | | | | | | The drawing function cfbfillrect does not work correctly when access is not unsigned-long aligned. It manifests as extra lines of pixels that are not complete drawn. Reversing the shift operator solves the problem, so I would presume that this bug would manifest only on little endian machines. The function cfbcopyarea may also have this bug. Aligned access should present no problems. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: Shift pixel value before entering loop in cfbimageblitAntonino A. Daplas2005-12-13
| | | | | | | | | | In slow imageblit, the pixel value is shifted by a certain amount (dependent on the bpp and endianness) for each iteration. This is inefficient. Better do the shifting once before going into the loop. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: fix switch to KD_TEXT, enhanced versionKnut Petersen2005-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Every framebuffer driver relies on the assumption that the set_par() function of the driver is called before drawing functions and other functions dependent on the hardware state are executed. Whenever you switch from X to a framebuffer console for the very first time, there is a chance that a broken X system has _not_ set the mode to KD_GRAPHICS, thus the vt and framebuffer code executes a screen redraw and several other functions before a set_par() is executed. This is believed to be not a bug of linux but a bug of X/xdm. At least some X releases used by SuSE and Debian show this behaviour. There was a 2nd case, but that has been fixed by Antonino Daplas on 10-dec-2005. This patch allows drivers to set a flag to inform fbcon_switch() that they prefer a set_par() call on every console switch, working around the problems caused by the broken X releases. The flag will be used by the next release of cyblafb and might help other drivers that assume a hardware state different to the one used by X. As the default behaviour does not change, this patch should be acceptable to everybody. Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Acked-by: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbcon: Avoid illegal display panningAntonino A. Daplas2005-12-13
| | | | | | | | Avoid calls to fb_pan_display when driver is suspended or not in text mode. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: Pan display fixesAntonino A. Daplas2005-12-13
| | | | | | | | | | | | - Fix fb_pan_display rejecting yoffsets that are valid if panning mode is ywrap. - Add more robust error checking in fb_pan_display specially since this function is accessible by userland apps. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbcon: Add ability to save/restore graphics stateAntonino A. Daplas2005-12-13
| | | | | | | | | | | | Add hooks to save and restore the graphics state. These hooks are called in fbcon_blank() when entering/leaving KD_GRAPHICS mode. This is needed by savagefb at least so it can cooperate with savage_dri and by cyblafb. State save/restoration can be full or partial. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbcon: fix complement_mask() with 512 character mapAntonino A. Daplas2005-12-13
| | | | | | | | | There is a bug in the complement_mask when you have a 512-character map. Linux boots to a default 256-character map and most probably your login profile is loading a 512-character map which results in a bad gpm cursor. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SBUSFB] tcx: Use FB_BLANK_UNBLANK instead of magic constant.Hareesh Nagarajan2005-12-12
| | | | | | From: Hareesh Nagarajan <hnagar2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SBUSFB]: Kill 'list' member from foo_par structs, totally unused.David S. Miller2005-12-12
| | | | | | Based upon a patch from Hareesh Nagarajan. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] fbdev: cg3fb: Kconfig fixMark Fortescue2005-11-29
| | | | | | | | | A cut and past error regarding the CG3 frame buffer needs to be fixed. It also affects Creator/Creator3D/Elite3D. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: cirrusfb: Driver cleanup and bug fixesAntonino A. Daplas2005-11-29
| | | | | | | | | | | | | | - pseudo_palette is only 16 entries long - the pseudo_palette, if using the generic drawing functions, must always be u32 regardless of bpp - the fillrect accelerator is using region->color regardless of the visual. region->color is the index to the pseudo_palette if visual is truecolor Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Console rotation fixesBenjamin Herrenschmidt2005-11-28
| | | | | | | | | | | 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 <benh@kernel.crashing.org> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbcon: fix obvious bug in fbcon logo rotation codeJasper Spaans2005-11-24
| | | | | | | | | | | | This code fixes a tiny problem with the recent fbcon rotation changes: fb_prepare_logo doesn't check the return value of fb_find_logo and that causes a crash for my while booting. Obvious & working & tested fix is here. Signed-off-by: Jasper Spaans <jasper@vs19.net> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] vgacon: Fix usage of stale height value on vc initializationAntonino A. Daplas2005-11-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported by: Wayne E. Harlan "[1.] One line summary of the problem: When the kernel option "vga=1" is used, additional tty's (alt+control+Fx with x=2,3,4,5, etc) do not provide the full 50 lines of output. The first one does have 50 lines, however. [2.] Full description of the problem/report: These addtitional tty's show only 39 lines plus the top pixel of the 40-th line. The remaining lines are black and not shown. Kernel version 2.6.13.4 does not show this problem." This bug is caused by using a stale font height value on vgacon_init. Booting with vga=1 gives an 80x50 screen with an 8x8 font. Somewhere during the initialization, the font was changed to 8x9 and the first vc was correctly resized to 80x44. However, the rest of the vc's were not allocated yet, and when they were subsequently initialized, they still used a font height of 8 (instead of 9) causing the mentioned bug. Fix by saving the new font height to vga_video_font_height. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbcon: Console Rotation - Fix wrong shift calculationAntonino A. Daplas2005-11-22
| | | | | | | | | | | | | 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 <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* offb: Fix compile error on ppc32 systemsPaul Mackerras2005-11-18
| | | | | | The code Ben H added needs <linux/pci.h> for things like pci_dev, etc. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Workaround for offb on 64 bits platformsBenjamin Herrenschmidt2005-11-17
| | | | | | | | | | This fixes a problem with offb not parsing addresses properly on 64 bits machines, and thus crashing at boot. The problem is worked around by locating the matching PCI device and using the properly relocated PCI base addresses instead of misparsing the Open Firmware properties. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] make vesafb build without CONFIG_MTRRJan Beulich2005-11-13
| | | | | | | | vesafb did not build without CONFIG_MTRR. Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] w100fb: platform device conversion fixupRichard Purdie2005-11-13
| | | | | | | | | Fix an error in w100fb after the platform device conversion. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nvidiafb: Fix bug in nvidiafb_pan_displayAntonino A. Daplas2005-11-13
| | | | | | | | | | nvidiafb_pan_display() is incorrectly using the fields in info->var instead of var passed to the function. Signed-off-by: Antonino Daplas <adaplas@pol.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fbdev: fix module dependency loopAntonino A. Daplas2005-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nv_of.c build fixAndrew Morton2005-11-13
| | | | | | | | | | | | | | | drivers/video/nvidia/nv_of.c:33: error: redefinition of `nvidia_probe_of_connector' drivers/video/nvidia/nv_proto.h:51: error: `nvidia_probe_of_connector' previously defined here Because the inline version depends on !CONFIG_FB_OF and the out-of-line version depends on CONFIG_PPC_OF. Ben said: "Yes, CONFIG_PPC_OF is the right one, must be a typo." Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> C: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SBUSFB]: implement ->compat_ioctlChristoph Hellwig2005-11-12
| | | | | | | | | | | | | This patch adds a new function, sbusfb_compat_ioctl() to drivers/video/sbuslib.c and uses it as compat_ioctl in all sbus fb drivers This remove the last per-arch compat ioctl bits in arch/sparc64/kernel/ioctl32.c so it would be nice if people could test if this actually copiles and works and if yes apply it :) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "[PATCH] fbcon: Add rl (Roman Large) font"Linus Torvalds2005-11-12
| | | | This reverts 998e6d51162707685336ff99c029c8911b270d32 commit.
* Merge master.kernel.org:/home/rmk/linux-2.6-drvmodelLinus Torvalds2005-11-11
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| * [DRIVER MODEL] Convert platform drivers to use struct platform_driverRussell King2005-11-09
| | | | | | | | | | | | | | | | | | This allows us to eliminate the casts in the drivers, and eventually remove the use of the device_driver function pointer methods for platform device drivers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [ARM] 3096/1: Add SharpSL Zaurus power and battery management core driverRichard Purdie2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie This patch adds a power and battery management core driver which with the addition of the right device files, supports the c7x0 and cxx00 series of Sharp Zaurus handhelds. The driver is complex for several reasons. Battery charging is manually monitored and controlled. When suspended, the device needs to periodically partially resume, check the charging status and then re-suspend. It does without bothering the higher linux layers as a full resume and re-suspend is unnecessary. The code is carefully written to avoid interrupts or calling code outside the module under these circumstances. It also vets the various wake up sources and monitors the device's power situation. Hooks to limit the backlight intensity and to notify the battery monitoring code of backlight events are connected/added as the backlight is one of the biggest users of power on the device. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] drivers/video/vgastate.c: kill dead codeAdrian Bunk2005-11-09
| | | | | | | | | | | | | | | | | | This patch kills some dead code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbdev: move ioctl32 code to fbmem.cArnd Bergmann2005-11-09
| | | | | | | | | | | | | | | | | | | | The frame buffer layer already had some code dealing with compat ioctls, this patch moves over the remaining code from fs/compat_ioctl.c Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbdev: Remove remains of epson1356fbRalf Baechle2005-11-09
| | | | | | | | | | | | | | | | | | Delete leftovers of the FB_E1356 and anything that did depend on it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbdev: Possible endian fix in cfbimageblitAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix possible endian bug(?) when bit testing in slow_imageblit(). This function is rarely called (only if (width * bpp) % 32 != 0) thus the bug is not triggered. However, if the console is rotated at 90 or 270 degrees, the height becomes the width, and a variety of fonts have heights that will force a call to slow_imageblit(). Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] vga16fb: Convert vga16fb as a platform deviceAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Convert vga16fb as a platform device - use framebuffer_alloc() to dynamically allocate resources, and framebuffer_release() to free - remove unneeded casts - trivial whitespace changes Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add ability to control rotation via sysfsAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add ability to set rotation via sysfs. The attributes are located in /sys/class/graphics/fb[n] and accepts 0 - unrotated; 1 - clockwise; 2 - upside down; 3 - counterclockwise. The attributes are: con_rotate (r/w) - set rotation of the active console con_rotate_all (w) - set rotation of all consoles rotate (r/w) - set rotation of the framebuffer, if supported. Currently, none of the drivers support this. This is probably temporary, since con_rotate and con_rotate_all are console-specific and has no business being under the fb device. However, until the console layer acquires it's own sysfs class, these attributes will temporarily reside here. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add support for 270-degree rotationAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | Add support for 270-degree (counterclockwise) rotation of the console. To activate, boot with: fbcon=rotate:3 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add support for 180-degree console rotationAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | Add support for 180-degree (upside down) rotation of the console. To activate, boot with: fbcon=rotate:2 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add support for 90-degree console rotationAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | Add support for 90-degree (clockwise) rotation of the console. To activate, boot with: fbcon=rotate:1 Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add support to rotate font bitmapAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | 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 <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Add support to rotate the logoAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | Add support for rotating and positioning of the logo. Rotation and position depends on 'int rotate' parameter added to fb_prepare_logo() and fb_show_logo(). Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbcon: Console Rotation - Prepare fbcon for console rotationAntonino A. Daplas2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fbdev: Framebuffer mode required for PowerBook TitaniumMichael Hanselmann2005-11-09
| | | | | | | | | | | | | | | | | | | | This patch adds the framebuffer mode required for an Apple PowerBook G4 Titanium. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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