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path: root/drivers/media/video/v4l1-compat.c
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2010-12-29[media] V4L: remove V4L1 compatibility modeHans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-25[media] Guard a divide in v4l1 compat layerDr. David Alan Gilbert
Hi, I managed to trigger a divide by 0 in the v4l compat code with the mem2mem test module; I suspect perhaps it shouldn't have been returning a 0 pixel wide picture, but either way it seems right to guard this divide by 0 in the compatibility layer. Tested on 2.6.36 (ubuntu build, but the code in this is the same as upstream), but ***not tested with a real video device***. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> cc: stable.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12948): v4l1-compat: fix VIDIOC_G_STD handlingHans Verkuil
The VIDIOC_G_STD ioctl may not be present in the case of radio receivers. In that case G_STD will return an error. The v4l1-compat layer should not attempt to propagate that error to the caller, instead it should be ignored. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12483): Use DIV_ROUND_CLOSESTJulia Lawall
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ @depends on haskernel@ expression x,__divisor; @@ - (((x) + ((__divisor) / 2)) / (__divisor)) + DIV_ROUND_CLOSEST(x,__divisor) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11329): Fix buglets in v4l1 compatibility layerRussell King
The following patch fixes a few bugs I've noticed in the V4L1 compatibility layer: - VIDEO_MODE_AUTO for get/set input ioctls was not being handled - wrong V4L2 ioctl being used in v4l1_compat_select_tuner Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-01-06poll: allow f_op->poll to sleepTejun Heo
f_op->poll is the only vfs operation which is not allowed to sleep. It's because poll and select implementation used task state to synchronize against wake ups, which doesn't have to be the case anymore as wait/wake interface can now use custom wake up functions. The non-sleep restriction can be a bit tricky because ->poll is not called from an atomic context and the result of accidentally sleeping in ->poll only shows up as temporary busy looping when the timing is right or rather wrong. This patch converts poll/select to use custom wake up function and use separate triggered variable to synchronize against wake up events. The only added overhead is an extra function call during wake up and negligible. This patch removes the one non-sleep exception from vfs locking rules and is beneficial to userland filesystem implementations like FUSE, 9p or peculiar fs like spufs as it's very difficult for those to implement non-sleeping poll method. While at it, make the following cosmetic changes to make poll.h and select.c checkpatch friendly. * s/type * symbol/type *symbol/ : three places in poll.h * remove blank line before EXPORT_SYMBOL() : two places in select.c Oleg: spotted missing barrier in poll_schedule_timeout() Davide: spotted missing write barrier in pollwake() Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Ingo Molnar <mingo@elte.hu> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Brad Boyer <flar@allandria.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Roland McGrath <roland@redhat.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02V4L/DVB (10138): v4l2-ioctl: change to long return type to match unlocked_ioctl.Hans Verkuil
Since internal to v4l2 the ioctl prototype is the same regardless of it being called through .ioctl or .unlocked_ioctl, we need to convert it all to the long return type of unlocked_ioctl. Thanks to Jean-Francois Moine for posting an initial patch for this and thus bringing it to our attention. Cc: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-21V4L/DVB (9330): Get rid of inode parameter at v4l_compat_translate_ioctl()Mauro Carvalho Chehab
The inode parameter at v4l_compat_translate_ioctl() were just passed over several places just to keep compatible with fops.ioctl. However, it weren't used anywere. This patch gets hid of this unused parameter. Cc: Laurent Pinchart <laurent.pinchart@skynet.be> Cc: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-17remove CONFIG_KMOD from driversJohannes Berg
Straight forward conversions to CONFIG_MODULE; many drivers include <linux/kmod.h> conditionally and then don't have any other conditional code so remove it from those. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: video4linux-list@redhat.com Cc: David Woodhouse <dwmw2@infradead.org> Cc: linux-ppp@vger.kernel.org Cc: dm-devel@redhat.com Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-23V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to ↵Hans Verkuil
v4l2-common.h or v4l2-ioctl.h The functions in a header should not belong to another module. The prio functions belong to v4l2-common.c, so move them to v4l2-common.h. The ioctl functions belong to v4l2-ioctl.c, so create a new v4l2-ioctl.h header and move those functions to it. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7365): reduce stack usage of v4l1_compat_syncMarcin Slusarz
poll_one allocated on stack struct poll_wqueues which is pretty big structure (>500 bytes on x86_64). v4l1_compat_sync invokes poll_one in a loop, so allocate struct poll_wqueues in v4l1_compat_sync (with kmalloc) and pass it to poll_one. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7364): reduce stack usage of v4l_compat_translate_ioctlMarcin Slusarz
v4l_compat_translate_ioctl used 1376 bytes of stack (x86_64), so split this 800 lines long function into ~20 small noinline functions; the biggest function takes now 712 bytes (v4l1_compat_sync) fix VIDIOCSWIN handler which printked wrong errors Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7363): fix coding style violations in v4l1-compat.cMarcin Slusarz
fix most coding style violations found by checkpatch Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7094): static memoryDouglas Schilling Landgraf
- Static memory is always initialized with 0. - Replaced in some cases C99 comments for /* */ Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-21V4L: Storage class should be before const qualifierTobias Klauser
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
2008-03-20V4L/DVB (7330): V4L1 - fix v4l_compat_translate_ioctl possible NULL derefCyrill Gorcunov
There are possible NULL pointer derefs in case of kzalloc fails so fix them. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-18Replace __attribute_pure__ with __pureRalf Baechle
To be consistent with the use of attributes in the rest of the kernel replace all use of __attribute_pure__ with __pure and delete the definition of __attribute_pure__. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <rmk@arm.linux.org.uk> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-09V4L/DVB (6079): Cleanup: remove linux/moduleparam.h from drivers/media filesMauro Carvalho Chehab
Since at least kernel 2.6.12-rc2, module.h includes moduleparm.h. This patch removes all occurences of moduleparm.h from drivers/media files. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5571): V4l1-compat: Make VIDIOCSPICT return errors in a useful wayTrent Piepho
Among other things, VIDIOCSPICT sets the pixel format. Some drivers don't support all formats, e.g. cx88 doesn't support the planar formats. The compat code that translates VIDIOCSPICT into V4L2 ioctls doesn't pass on any errors, so a userspace program doesn't know if it has selected an unsupported pixel format. VIDIOCSPICT sets both the memory capture and overlay formats, and it's possible that one will be set while the other will fail, e.g. cx88 doesn't even support overlay. Also, trying to set the overlay format will fail for non-root users. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5570): V4l1-compat: misc fixes for pixelformat functionTrent Piepho
Mark the palette2pixelformat lookup table as const pixelformat is unsigned, adjust the palette2pixelformat table and pixelformat_to_palette() palette_to_pixelformat() is a pure function pixelformat_to_palette() is a const function Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-21V4L/DVB (5068): Fix authorship referencesMauro Carvalho Chehab
Bill Dirks asked me to update his entries at kernel files, since he change his e-mail. I've also updated a few web broken links or obsolete info to the curent sites where V4L drivers and API are being discussed currently. CC: Bill Dirks <bill@thedirks.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10V4L/DVB (4862): Fixes uninitialized variables passed to VIDIOC_G_FBUF.audetto@tiscali.it
Signed-off-by: Andrea A Odetti <audetto@tiscali.it> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10V4L/DVB (4858): Fix: implement missing VIDIOCSTUNER on v4l1-compat moduleMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10V4L/DVB (4857): Cleans some ioctl structs before calling V4L2 counterpartMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-09-26V4L/DVB (4474): On some cases, depth were not returned.Mauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-08-08V4L/DVB (4427): Fix V4L1 Compat for VIDIOCGPICT ioctlMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-25V4L/DVB (4068): Removed all references to kernel stuff from videodev.h and ↵Mauro Carvalho Chehab
videodev2.h The videodev.h and videodev2.h describe the public API for V4L and V4L2. It shouldn't have there any kernel-specific stuff. Those were moved to v4l2-dev.h. This patch removes some uneeded headers and include v4l2-common.h on all V4L driver. This header includes device implementation of V4L2 API provided on v4l2-dev.h as well as V4L2 internal ioctls that provides connections between master driver and its i2c devices. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-01-11V4L/DVB (3344a): Conversions from kmalloc+memset to k(z|c)allocPanagiotis Issaris
Conversions from kmalloc+memset to k(z|c)alloc. Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-01-09V4L/DVB (3178): bttv VBI fixesMichael H. Schimek
- V4L2_(G|S|TRY)_FMT returned incorrect VBI start lines for PAL-M, NTSC-JP, and PAL-60. They also returned an inaccurate VBI offset. - V4L2_(G|S)_FMT and V4L2_TRY_FMT disagreed about the start of VBI capturing in PAL and SECAM second field. Note the start line fixes may break applications using VIDIOCSVBIFMT because this ioctl fails when the driver does not support exactly the requested parameters. - V4L2_TRY_FMT did not clear the reserved field in struct v4l2_vbi_format. - V4L2_(S|TRY)_FMT did not expect very large or small VBI start or count values, returning wrong (but safe) counts due to an overflow. - VIDIOCGVBIFMT confused V4L and V4L2 VBI flags. However this had no effect because the flags have the same value and bttv never sets them. - In v4l_compat_translate_ioctl() the VIDIOC(G|S)VBIFMT code did not expect V4L2 drivers supporting VBI formats besides V4L2_PIX_FMT_GREY. Signed-off-by: Michael H. Schimek <mschimek@gmx.at> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2005-11-09[PATCH] v4l: 800: whitespace cleanupsMauro Carvalho Chehab
- Whitespace Cleanups. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] v4l: 728: vidiocsfreq and vidiocgfreq expect an unsigned long as ↵Hans Verkuil
argument - VIDIOCSFREQ and VIDIOCGFREQ expect an unsigned long as argument. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07[PATCH] kfree cleanup: drivers/mediaJesper Juhl
This is the drivers/media/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in drivers/media/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: Johannes Stezenbach <js@linuxtv.org> Cc: Michael Krufky <mkrufky@m1k.net> Cc: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Acked-by : Manu Abraham <manu@linuxtv.org> Acked-by: Andreas Oberritter <obi@linuxtv.org> Acked-by: Wilson Michaels <wilsonmichaels@earthlink.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] v4l: common part Updates and tuner additionsMauro Carvalho Chehab
- Remove $Id CVS logs for V4L files - Included newer cards. - Added a new NEC protocol for ir based on pulse distance. - Enable ATSC support for DViCO FusionHDTV5 Gold. - Added tuner LG NTSC (TALN mini series). - Fixed tea5767 autodetection. - Resolve more tuner types. - Commented debug function removed from mainstream. - Remove comments from mainstream. Still on development tree. - linux/version dependencies removed. - BTSC Lang1 now is set to auto_stereo mode. - New tuner standby API. - i2c-core.c uses hexadecimal for the i2c address, so it should stay consistent. Signed-off-by: Uli Luckas <luckas@musoft.de> Signed-off-by: Mac Michaels <wmichaels1@earthlink.net> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Hermann Pitton <hermann.pitton@onlinehome.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-24[PATCH] v4l: update for SAA7134 cardsMauro Carvalho Chehab
This patch adds support for various SAA7134 cards and brings some fixes. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Fabrice Aeschbacher <fabrice.aeschbacher@laposte.net> Signed-off-by: Hermann Pitton <hermann.pitton@onlinehome.de>. Signed-off-by: Nickolay V Shmyrev <nshmyrev@yandex.ru> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds
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!