pm24.git/drivers/video/fbmon.c, branch v3.8

fbdev: fix parsing of standard timings

2011-09-01T00:31:05Z

The standard timings parses uses 1:1 dimensions when the ratio in the EDID data is 0. However, for EDID 1.3 and later the dimensions are 16:10 when the ratio is 0. Pass the version and revision numbers to get_std_timing() which can then make the right decision about dimensions. Signed-off-by: Tomi Valkeinen Signed-off-by: Florian Tobias Schandinat

fbdev: when parsing E-EDID blocks, also use SVD entries

2010-11-15T05:52:23Z

Add parsing of E-EDID SVD entries. In this first version only a few CEA/EIA-861E modes are implemented, more can be added as needed. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt

fbdev: export fb_edid_add_monspecs() for modules, improve algorithm

2010-11-15T05:52:21Z

fb_edid_add_monspecs() should also be exported for use in modules, and it requires a dummy version for the case, when CONFIG_FB_MODE_HELPERS is not selected. This patch also improves the algorithm by removing a redundant memory allocation, adds function documentation, adds data verification and replaces memmove() with memcpy(). Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt

video: add fb_edid_add_monspecs for parsing extended edid information

2010-11-15T05:52:19Z

Modern monitors/tvs have more extended EDID information blocks which can contain extra detailed modes. This adds a fb_edid_add_monspecs function which drivers can use to parse those additions blocks. Signed-off-by: Erik Gilling Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

fbmon: work around compiler bug in gcc-2.4.2

2009-07-22T15:49:22Z

There's some odd bug in gcc-4.2 where it miscompiles a simple loop whent he loop counter is of type 'unsigned char' and it should count to 128. The compiler will incorrectly decide that a trivial loop like this: unsigned char i, ... for (i = 0; i < 128; i++) { .. is endless, and will compile it to a single instruction that just branches to itself. This was triggered by the addition of '-fno-strict-overflow', and we could play games with compiler versions and go back to '-fwrapv' instead, but the trivial way to avoid it is to just make the loop induction variable be an 'int' instead. Thanks to Krzysztof Oledzki for reporting and testing and to Troy Moure for digging through assembler differences and finding it. Reported-and-tested-by: Krzysztof Oledzki Found-by: Troy Moure Gcc-bug-acked-by: Ian Lance Taylor Cc: stable@kernel.org Signed-off-by: Linus Torvalds

fbmon: fix EDID parser to detect interlace modes

2008-10-16T18:21:44Z

The current EDID parser in the linux kernel ignores interlace modes. The patch looks for the edid interlace flag and adjusts the vertical resolution if it is found. Signed-off-by: Jon Dufresne Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fbdev: width and height are unsigned

2008-07-24T17:47:39Z

The width and height members of fb_var_screeninfo are __u32. The code initializes them to -1 which seems wrong, and 0 seems like an equally good default value. Signed-off-by: Ville Syrjala Cc: "Antonino A. Daplas" Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fbmon: cleanup trailing whitespaces

2008-02-06T18:41:15Z

[akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Andre Haupt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fbmon: remove unnecessary local variable

2008-02-06T18:41:15Z

This fixes a sparse warning about symbol 'i' shadowing an earlier one. Signed-off-by: Andre Haupt Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds