In case if condition (kd != isdongle(peasycap)) becomes true,
easycap_poll() returns without releasing easycapdc60_dongle[kd].mutex_video.
The patch adds mutex_unlock() before that return.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use kmemdup_user rather than duplicating its implementation
This is a little bit restricted to reduce false positives
The semantic patch that makes this output is available
in scripts/coccinelle/api/memdup_user.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove support for OSS. OSS is being deprecated
and it is just plain headache to support both alsa and oss.
Last I broke the compilation when OSS is enabled with the patch
cdaa898b5e
staging/easycap: kill telltale logic
so this fixes also that issue.
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reason for this feature was
'some versions of the videodev module overwrite the data which has
been written by the call to usb_set_intfdata() in easycap_usb_probe(),
replacing it with a pointer to the embedded v4l2_device structure.
to detect this, the string in the easycap.telltale[] buffer is checked.'
The upstream version of v4l2_device_register sets driver data
only when it wasn't already set, therefore this is not needed
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It was pointed out by 'make versioncheck' that linux/version.h was not
always being included where needed and sometimes included needlessly
in drivers/staging/easycap/.
This patch fixes up the includes.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
As described above fillin_formats()
"""
/*
* THE 16-BIT easycap_format.mask HAS MEANING:
* (least significant) BIT 0: 0 => PAL, 25 FPS; 1 => NTSC, 30 FPS
* BITS 2-4: RESERVED FOR DIFFERENTIATING STANDARDS
* BITS 5-7: NUMBER OF BYTES PER PIXEL
* BIT 8: 0 => NATIVE BYTE ORDER; 1 => SWAPPED
* BITS 9-10: RESERVED FOR OTHER BYTE PERMUTATIONS
* BIT 11: 0 => UNDECIMATED; 1 => DECIMATED
* BIT 12: 0 => OFFER FRAMES; 1 => OFFER FIELDS
* BIT 13: 0 => FULL FRAMERATE; 1 => REDUCED
* (most significant) BITS 14-15: RESERVED FOR OTHER FIELD/FRAME OPTIONS
* IT FOLLOWS THAT:
* bytesperpixel IS ((0x00E0 & easycap_format.mask) >> 5)
* byteswaporder IS true IF (0 != (0x0100 & easycap_format.mask))
*
* decimatepixel IS true IF (0 != (0x0800 & easycap_format.mask))
*
* offerfields IS true IF (0 != (0x1000 & easycap_format.mask))
*/
"""
bytes-per-pixel is stored in bits 5-7 of calculated mask.
But when calculating bytes-per-line we were extracting wrong value
instead of bytes-per-pixel, which was usually 2 times bigger -- e.g. for
PAL YUV 422 I was getting ((mask3 & 0x00F0) >> 4) = 4 bytes instead of 2.
The error here is that even in comments there is a line saying
* bytesperpixel IS ((0x00E0 & easycap_format.mask) >> 5)
but we were using
((0x00F0 & easycap_format.mask) >> 4)
With 2 times bigger bytesperpixel and automatically bytesperline, the
video was shown halfheight'ed, which is understandable if we look at
video-memory layout:
<------- bytesperline -------->
<- real bpl ->
x0----------y0 x1-----------y1
x2----------y2 x3-----------y3
xn----------yn xn-----------yn
<garbage>
for each line, we should display width pixels, then move to next line
with bytesperline, and oops, if bytesperline = 2*real-bytesperlin, we'll
skip one line and move to next-next line, and so only half lines will be
shown.
Initially I've debugged the problem with my video application[1], but
I've checked that after this patch both rawv (mine app) and tvtime work
correctly.
[1] http://repo.or.cz/w/rawv.git
P.S. why at all we use those mask/shifts? Why not use bitfields?
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I'm not 100% sure, only 99.99% that PAGE_SIZE is always defined in
Linux. So there is no need to check for it.
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Because V4L1 was completly removed from the kernel in 2.6.38. See e.g.
08af245d ([media] V4L: remove V4L1 compatibility mode).
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Both bars=0 and bars=1 were described as meaning to display bars on
signal lost. Actually bars=1 means "display bars", but bars=0 means
display raw source as is (usually black screen).
Instead of changing bars=0 to "_no_ testcard bars ..." as suggested by
Dan Carpenter reword the whole bars description for clarity.
Cc: Mike Thomas <rmthomas@sciolus.org>
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following options were removed from in-tree driver, but were left
in README:
- EASYCAP_IS_VIDEODEV_CLIENT was removed in cb81fa07 (staging/easycap:
kill EASYCAP_IS_VIDEODEV_CLIENT compilation conditional);
- EASYCAP_NEEDS_V4L2_DEVICE_H/EASYCAP_NEEDS_V4L2_FOPS were removed in
30516058 (staging/easycap: kill EASYCAP_NEEDS_V4L2_DEVICE_H and
EASYCAP_NEEDS_V4L2_FOPS);
- EASYCAP_NEEDS_UNLOCKED_IOCTL was removed in f2b3c685 (staging/easycap:
kill EASYCAP_NEEDS_UNLOCKED_IOCTL).
Remove them.
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The JOM() macro dereferences peasycap, so I moved the free down some
lines.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
wMaxPacketSize are bEndpointAddress assigned but not used
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
we are interested only in isochronous in endpoints
so we can simplify the flow
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
reduce printouts of not necessary information
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1. rename usb variables to more common names
struct usb_device *pusb_device -> usbdev
struct usb_host_interface *pusb_host_interface -> alt
struct usb_endpoint_descriptor *pepd ->
struct usb_interface_descriptor *pusb_interface_descriptor -> interface;
2. use usb_altnum_to_altsetting to access alternative settings
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fix indentation and drop success statements printouts
that just causes code be less readable
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits)
[media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t
[media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly
[media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE
[media] v4l: soc-camera: Store negotiated buffer settings
[media] rc: interim support for 32-bit NEC-ish scancodes
[media] mceusb: topseed 0x0011 needs gen3 init for tx to work
[media] lirc_zilog: error out if buffer read bytes != chunk size
[media] lirc: silence some compile warnings
[media] hdpvr: use same polling interval as other OS
[media] ir-kbd-i2c: pass device code w/key in hauppauge case
[media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap
[media] remove the old RC_MAP_HAUPPAUGE_NEW RC map
[media] rc/keymaps: Rename Hauppauge table as rc-hauppauge
[media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping
[media] rc-rc5-hauppauge-new: Add support for the old Black RC
[media] rc-rc5-hauppauge-new: Add the old control to the table
[media] rc-winfast: Fix the keycode tables
[media] a800: Fix a few wrong IR key assignments
[media] opera1: Use multimedia keys instead of an app-specific mapping
[media] dw2102: Use multimedia keys instead of an app-specific mapping
...
Fix up trivial conflicts (remove/modify and some real conflicts) in:
arch/arm/mach-omap2/devices.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/dabusb/dabusb.c
drivers/staging/dabusb/dabusb.h
drivers/staging/easycap/easycap_ioctl.c
drivers/staging/usbvideo/usbvideo.c
drivers/staging/usbvideo/vicam.c
Some ioctl's were defined wrong on 2.6.2 and 2.6.6, using the wrong
type of R/W arguments. They were fixed, but the old ioctl names are
still there, maintained to avoid breaking binary compatibility:
There's no sense on preserving those forever, as it is very doubtful
that someone would try to use a such old binary with a modern kernel.
Removing them will allow us to remove some magic done at the V4L ioctl
handler.
Note that any application compiled with a videodev2.h from 2.6.7 or later
will be using the correct ioctls.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
BKL: That's all, folks
fs/locks.c: Remove stale FIXME left over from BKL conversion
ipx: remove the BKL
appletalk: remove the BKL
x25: remove the BKL
ufs: remove the BKL
hpfs: remove the BKL
drivers: remove extraneous includes of smp_lock.h
tracing: don't trace the BKL
adfs: remove the big kernel lock
Reshuffle error handling to reduce indentation nesting
This reduce number of lines exceeding 80 characters
from 41 to 15
use:
if (error)
(return, goto, continue)
CODE
instead of:
if (good)
<CODE>
else
<EXCEPTION HANDLING>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
eliminate copying twice a constant string just capture it using
const char * pointer
piggyback some other style fixes
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add first level indentation to easycap_sound_settings with astyle -t8
10 lines over 80 characters were left out for further fix
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove EASYCAP_IS_VIDEODEV_CLIENT and irrelevant code as the define
is always set in the in-kernel driver
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
reduce code duplication in register settings
instead of
if (ntsc)
<CODE BLOCK>
else
<CODE BLOCK>
use
cfg = (ntsc) ? <chip>configNTSC : <chip>configPAL;
<CODE BLOCK>
in addition change while loops to more readable for loops
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
wait_i2c is only used from easycap_low.c
so remove it from the easycap.h and mark it static
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
convert if (NULL != ptr) to if (ptr)
convert if (NULL == ptr) to if (!ptr)
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
mostly indentation fixes and some line over 80 characters fixes
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These were missed the last time I cleaned this up
globally, because of code moving around or new code
getting merged.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add the first level indentation to easycap_testcard.c with astyle -t8.
About 100 of 80 columns warnings were left out for further fix
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add the first level indentation to easycap_testcard.c with astyle -t8.
No chackpatch warnings were created
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add first level indentation to easycap_sound_oss.c with astyle -t8
62 lines over 80 characters were left out for further fix
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add the first level indentation to easycap_sound.c with astyle -t8.
41 lines over 80 characters were left out for further fix
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add first level indentation to easayca_main.c
This created around 300 lines over 80 characters.
Around 100 of straight forward once were fixed in this patch.
The another 200 require more code movement and need to be fixed
later
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
use USB_SUBCLASS_AUDIOSTREAMING constant from usb/audio.h
instead of 0x02
Cc: Mike Thomas <rmthomas@sciolus.org>
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
make inputset population to be more compact and readable
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fix some code styles and drop too verbose printouts
and non relevant code
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
use %p instead of %X
drop casting of pointer to long long int
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove pointless compilation flag
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
EASYCAP_NEEDS_V4L2_DEVICE_H and EASYCAP_NEEDS_V4L2_FOPS are required in
in-tree driver
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
remove uneedet brackets in ifs and switches
drop pointless castings
other small fixes
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
masking return value of usb_control_msg() will mask negative
error values into positive.
Cc: Mike Thomas <rmthomas@sciolus.org>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
NOREADBACK doesn't justify Kconfig option so we use module
paramter for it.
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use regget to reading back what was written to a register.
This required changning size argument to regget signature
On the way remove usless variable casting
Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alexey Khoroshilov
Thomas Meyer
Tomas Winkler
Jesper Juhl
Kirill Smelkov
Dan Carpenter
Linus Torvalds
Hans Verkuil
Arnd Bergmann