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2007-10-16fbdev: change asm/uaccess.h to linux/uaccess.hKrzysztof Helt
This patch replaces <asm/uaccess.h> with <linux/uaccess.h> after the checkpatch.pl hint. The include of <asm/uaccess.h> is removed if the driver does not use it. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16vt: Fix warnings in selection.hRalf Baechle
<linux/selection.h> assumes that struct tty_struct has previously been included. If not, this pile of warnings will result: CC [M] drivers/video/console/newport_con.o In file included from drivers/video/console/newport_con.c:18: include/linux/selection.h:16: warning: 'struct tty_struct' declared inside param eter list include/linux/selection.h:16: warning: its scope is only this definition or decl aration, which is probably not what you want include/linux/selection.h:17: warning: 'struct tty_struct' declared inside param eter list include/linux/selection.h:20: warning: 'struct tty_struct' declared inside param eter list Fixed by adding a forward declaration of struct tty_struct. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16fbcon: Convert struct font_desc to use ISO C initializersRalf Baechle
Akpm's patch "newport_con warning fix" got me to look at the console drivers again and one thing that I noticed was that none of the fonts was using ISO initializers for it's fonts. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16atyfb: atyfb: Unshare pseudo_paletteGeert Uytterhoeven
atyfb: Move the pseudo palette into the card-specific atyfb_par, so it's no longer shared among multiple cards Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: byte ordering fixesKrzysztof Helt
This patch sets correct bits related to the byte ordering of the framebuffer. This was tested on little endian kernel only. The big endian kernel may require different settings. The patch also adds 32 bpp mode which is called 24 bpp by Samsung. One pixel takes 32 bits but only 24 bits are used in this mode. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: fix missing registers offsetKrzysztof Helt
This patch adds missing virtual register offsets where appropriate. This fixes crashes in the driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: remove lcdcon2 and lcdcon3 register fieldsKrzysztof Helt
This patch removes unused lcdcon2 and lcdcon3 register value from the s3c2410fb_display structure. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: add pulse length fields to s3c2410fb_displayKrzysztof Helt
This patch adds synchronization pulse lenght fields to the s3c2410fb_display structure and makes use of them in the driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: use vertical margins valuesKrzysztof Helt
This patch makes use of vertical margins fields in the s3c2410fb_display structure. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: add vertical margins fields to s3c2410fb_displayKrzysztof Helt
This patch adds vertical margins values to all s3c24xx platform. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: remove lcdcon3 register from s3c2410fb_displayKrzysztof Helt
This patch removes unused lcdcon3 register from the s3c2410fb_display structure. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: use new margin fieldsKrzysztof Helt
This patch makes use of margins fields in the s3c2410fb_display structure. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: add margin fields to s3c2410fb_displayKrzysztof Helt
This patch adds margins fields to the s3c2410fb_display structure. It also sets display type and horizontal margins in all platform files that use the s3c2410fb driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: multi-display supportKrzysztof Helt
This patch adds a new structure to describe and handle more than one panel (display mode) for the s3c2410 framebuffer. This structure is added after the pxafb driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: remove fb_info pointer from s3c2410fb_infoKrzysztof Helt
This patch removes redundant fb field from the s3c2410fb_info structure. This breaks circular reference fb_info -> s3c2410fb_info -> fb_info again. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16s3c2410fb: code cleanupKrzysztof Helt
This patch cleans up the driver a bit. It contains coding style fixes (pointed by Lindent and checkpatch), white space clean ups and few minor code improvements. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: hardware cursor supportKrzysztof Helt
This patch adds hardware cursor support to the pm3fb driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: Permedia 2V hardware cursor supportKrzysztof Helt
This patch adds hardware cursor support for Permedia 2V chips. The hardware cursor is disabled by default. It does not blink - the same issue is mentioned in the x11 driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16fbdev: fb_create_modedb() non-static `int first = 1;'Geert Uytterhoeven
Looking at the code flow, `int first' in fb_create_modedb() should be static. [adaplas] Better for 'int first' to be moved outside the loop. [akpm@linux-foundation.org: kill stray semicolon] Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16drivers/video/geode/lxfb_core.c: fix lxfb_setup warningEugene Teo
drivers/video/geode/lxfb_core.c: In function 'lxfb_setup': drivers/video/geode/lxfb_core.c:564: warning: unused variable 'opt' Signed-off-by: Eugene Teo <eugeneteo@kernel.sg> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: checkpatch fixesKrzysztof Helt
This patch fixes all errors detected by checkpatch.pl script in the pm3fb.c file. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: checkpatch fixesKrzysztof Helt
This patch fixes all errors detected by checkpatch.pl script in the pm2fb.c file. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: mtrr supportKrzysztof Helt
This patch adds mtrr support to the tdfxfb driver. It also kills one redundant include and initialization value. [akpm@linux-foundation.org: cleanups] Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: hardware cursorKrzysztof Helt
This patch adds hardware cursor support to the tdfxfb driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: code improvementsKrzysztof Helt
This patch improves source code mainly by killing redundant variable loads, reducing number of variables, simplifying conditional branches, etc. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16fbdev: Fix incorrect timings in some modedb entriesAntonino A. Daplas
Reported by: John Lumby <johnlumby@hotmail.com> Some of the entries in the mode database does not match the comments and/or the refresh field. Adjust the timings so they match with both the comments and the refresh rate. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16unexport fb_prepare_logoAdrian Bunk
The logo code is not and should not be used by modules. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16radeon_driver_vblank_do_wait() staticAdrian Bunk
radeon_driver_vblank_do_wait() can become static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: palette fixesKrzysztof Helt
This patch fixes: - palette setting in 8-bit mode (aka 'funky penguin') - grayscale handling - adds proper barriers in xxx_inb/outb functions Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: 3 fixesKrzysztof Helt
This patch fixes 3 issues: - transparency handling in tdfxfb - panning with more than 4096 virtual height and acceleration (acceleration with x & y > 4096) - exit paths on errors in tdfxfb_probe() Additionally it sets a FBINFO_READS_FAST flag to use smart blitter scrolling (speed up on tdfxfb). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tdfxfb: coding style improvementKrzysztof Helt
This patch contains coding style improvements to the tdfxfb driver (white spaces, indentations, long lines). It also moves fb_ops structure to the end of file, so forward declarations of ops functions are redundant. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16tridentfb: coding style improvementKrzysztof Helt
This patch contains coding style improvements to the tridentfb driver (white spaces, indentations, long lines). It also moves fb_ops structure after fb api functions are defined. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pxafb: Add support for other palette formatsHans J. Koch
This patch adds support for the other three palette formats possible with the PXA LCD controller. This is required on boards where an LCD is connected with all its 18 bits. With this patch, it's possible to use an 8-bit mode with 18-bit palette entries. This used to be possible in 2.4 kernels but disappeared in 2.6. With current kernels, you can only get wrong colours out of an LCD connected this way. Users can choose the palette format by doing something like this in their board definition: static struct pxafb_mach_info my_fb_info = { [...] .lccr3 = LCCR3_OutEnH | LCCR3_PixFlEdg | LCCR3_PDFOR_3, .lccr4 = LCCR4_PAL_FOR_2, [...] }; Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16mbxfb: Improvements and new featuresRaphael Assenat
This contains the following changes: * Overlay surface alpha is configured separately from the overlay. This prevents display glitches (configure and fill the overlay first, set alpha to a visible value next) * Added an ioctl for configuring transparency of the Overlay and graphics planes. Blend mode, colorkey mode and global alpha mode are supported. * Added an ioctl for setting the plane order. The overlay plance can be placed over or under the graphics plane. * Added an ioctl for setting and reading chip registers, with mask. * Updated copyright for 2007 [adaplas] * Coding style changes Signed-off-by: Raphael Assenat <raph@8d.com> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16sm501fb: Ensure panel interface is not tristated when setupBen Dooks
When we setup the panel interface whilst configuring the framebuffer, we should ensure the panel interface is not in tristate, in case the bootloader or previous setup has not enabled it. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16sm501fb: Call fb suspend function during suspend and resumeBen Dooks
Call the fb_set_suspend() over suspend and resume. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16sm501fb: update suspend and resume codeBen Dooks
The suspend and resume code is failing to restore the CRT control register, thus causing the CRT data-path to get changed if the SM501 experiences a reset over suspend. Also move some of the debug messages to dev_dbg() level and ensure that the suspend code does not try and restore anything it did not manage to save. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: accelerated 24-bit fillrectKrzysztof Helt
This patch adds accelerated fillrect for 24-bit depth. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: Permedia 2V initialization fixesKrzysztof Helt
This patch: - initializes correctly the Permedia2V chip if it is not initialized by BIOS - puts back clock frequency for the ELSA WINNER board to 100kHz - fixes returned error values from setcolreg() function - uses more general classes for PCI ids Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: source code improvementsKrzysztof Helt
This patch concentrates on source compacting, simplification and more conformance to kernel coding standards. The major changes: - RD32() and WR() functions are merged into pm2_RD() and pm2_WR() - conditional (with switch()) RDAC functions are separated in two unconditional ones - the conditional pm2fb_block_op() function is merged into pm2fb_fillrect() and pm2fb_copyarea() - WAIT_FIFO() values are corrected Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm2fb: accelerated imageblitKrzysztof Helt
This patch adds accelerated imageblit function. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: mtrr support and noaccel optionKrzysztof Helt
This patch adds usage of MTRR registers and two new options: noaccel and nomtrr. [bunk@kernel.org: make pm3fb_init() static again] Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: improvements and cleanupsKrzysztof Helt
This patch contains improvements: - it adds ROP_XOR in pm3fb_fillrect() - it conforms closer to coding style - it removes redundant parentheses and setting bits with 0 value - it checks if hardware acceleration is disabled in pm3fb_imageblit - it adds module description Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: 3 small fixesKrzysztof Helt
This patch contains 3 small improvements: - it corrects scan line width calculation in pm3fb_imageblit() - it corrects mmio mapping for big endian machines - it enables panning acceleration constants Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: imageblit improvedKrzysztof Helt
This patch removes the pm3_imageblit() restriction to blit only images with width divisable by 32. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: header file reductionKrzysztof Helt
This patch removes constants named AAA_DISABLE with value 0. They are redudant and misleading ( a |= AAA_DISABLE does nothing and usually should be a &= ~AAA_ENABLE). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16skeletonfb: wrong field name fixKrzysztof Helt
This patch corrects name of the field. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16pm3fb: copyarea and partial imageblit supporKrzysztof Helt
This patch adds accelerated copyarea and partially accelerated imageblit functions. There is also fixed one register address in the pm3fb.h file. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16uvesafb: documentationMichal Januszewski
Documentation for the uvesafb driver. Signed-off-by: Michal Januszewski <spock@gentoo.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16uvesafb: the driver coreMichal Januszewski
uvesafb is an enhanced version of vesafb. It uses a userspace helper (v86d) to execute calls to the x86 Video BIOS functions. The driver is not limited to any specific arch and whether it works on a given arch or not depends on that arch being supported by the userspace daemon. It has been tested on x86_32 and x86_64. A single BIOS call is represented by an instance of the uvesafb_ktask structure. This structure contains a buffer, a completion struct and a uvesafb_task substructure, containing the values of the x86 registers, a flags field and a field indicating the length of the buffer. Whenever a BIOS call is made in the driver, uvesafb_exec() builds a message using the uvesafb_task substructure and the contents of the buffer. This message is then assigned a random ack number and sent to the userspace daemon using the connector interface. The message's sequence number is used as an index for the uvfb_tasks array, which provides a mapping from the messages coming from userspace to the in-kernel uvesafb_ktask structs. The userspace daemon performs the requested operation and sends a reply in the form of a uvesafb_task struct and, optionally, a buffer. The seq and ack numbers in the reply should be exactly the same as those in the request. Each message from userspace is processed by uvesafb_cn_callback() and after passing a few sanity checks leads to the completion of a BIOS call request. Signed-off-by: Michal Januszewski <spock@gentoo.org> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Paulo Marques <pmarques@grupopie.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>