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Commit Graph

1224 Commits

Author SHA1 Message Date
Andreas Oberritter
62838084b4 V4L/DVB (3727): Remove DMX_GET_EVENT and associated data structures
The ioctl DMX_GET_EVENT has never been implemented.
I guess no software is using it because of its lack of implementation.
Future software won't use it, too, because this API doesn't make much
sense the way it is: Frontend events have their own different API.
Scrambling events can't be generated in a useful way by the hardware I
know of.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:47 -03:00
Trent Piepho
68ef505e31 V4L/DVB (3724): Remove a wee bit of cruft
A few lines that do nothing in the or51132 frontend, removed.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:45 -03:00
Trent Piepho
8718455472 V4L/DVB (3723): Avoid unnecessary firmware re-loads in or51132 frontend
As QAM_64, QAM_256, and QAM_AUTO all use the same firmware, switching
between these modulations doesn't require a firmware re-load.  This also
fixes a mishandled error condition, in which the firmware file is loaded
into the kernel, the clock mode is changed, but then the firmware upload
to the device fails.  The modulation change is aborted, but the clock
mode would still be changed.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:44 -03:00
Trent Piepho
005b541f88 V4L/DVB (3721): Fix spelling
It's "Terrestrial"

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:43 -03:00
Michael Krufky
d147ed2aa4 V4L/DVB (3720): Fix spelling error / typo in comments
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:42 -03:00
Michael Krufky
c3291069c2 V4L/DVB (3718): Removed trailing newlines
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:40 -03:00
Mauro Carvalho Chehab
2e7c6dc398 V4L/DVB (3715): Change all emails to the currently used one.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:39 -03:00
Hans Verkuil
c7c0b34c27 V4L/DVB (3712): Fix video input setting of em28xx, use _INT_S_VIDEO_ROUTING in tvp5150
- Use new routing input defines in em28xx-cards.c
- Fix S-Video settings for tvp5150-based cards (input was copied from saa7115
  based cards and worked only because S-Video was selected in the default: case)
- Replace VIDIOC_S_INPUT by VIDIOC_INT_S_VIDEO_ROUTING in em28xx-video.c
- Remove the now obsolete VIDIOC_S_INPUT handler in saa7115.c
- Add VIDIOC_INT_G/S_VIDEO_ROUTING in tvp5150.c
- Add new media/tvp5150.h with the routing defines.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:38 -03:00
Hans Verkuil
b7f8292c96 V4L/DVB (3711): Add support for VIDIOC_INT_S_CRYSTAL_FREQ internal command.
Some saa7115-based cards use a different crystal frequency and a different
audio clock generation. Add a new VIDIOC_INT_S_CRYSTAL_FREQ command to be
able to set these values.
Also change the default APLL setting to 0. It makes no sense to have the
audio clock independent from the video clock, this can lead to audio/video
synchronization problems. Setting this to 0 is also consistent with the old
saa7114.c source and the way the Hauppauge Windows driver sets it.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:36 -03:00
Hans Verkuil
2eb606db11 V4L/DVB (3709): Improve line-in handling
- improve handling of the EXTERN input: don't start an unnecessary carrier scan
- improve the LOG_STATUS output
- ensure that a carrier scan is started again when switching back to the tuner.
- set correct prescale for L-NICAM

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:34 -03:00
Trent Piepho
0ead09180a V4L/DVB (3708a): Clean up some cruft in or51132 frontend
There is some old code in the or51133 firmware loading function that
has no effect.  Left a comment to in case it helps someone trying
to reverse engineer the chip.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-25 01:57:33 -03:00
David Brownell
ae0dadcf0f [PATCH] USB: move <linux/usb_input.h> to <linux/usb/input.h>
Move <linux/usb_input.h> to <linux/usb/input.h> and remove some
redundant includes.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-21 15:04:18 -07:00
Herbert Xu
932ff279a4 [NET]: Add netif_tx_lock
Various drivers use xmit_lock internally to synchronise with their
transmission routines.  They do so without setting xmit_lock_owner.
This is fine as long as netpoll is not in use.

With netpoll it is possible for deadlocks to occur if xmit_lock_owner
isn't set.  This is because if a printk occurs while xmit_lock is held
and xmit_lock_owner is not set can cause netpoll to attempt to take
xmit_lock recursively.

While it is possible to resolve this by getting netpoll to use
trylock, it is suboptimal because netpoll's sole objective is to
maximise the chance of getting the printk out on the wire.  So
delaying or dropping the message is to be avoided as much as possible.

So the only alternative is to always set xmit_lock_owner.  The
following patch does this by introducing the netif_tx_lock family of
functions that take care of setting/unsetting xmit_lock_owner.

I renamed xmit_lock to _xmit_lock to indicate that it should not be
used directly.  I didn't provide irq versions of the netif_tx_lock
functions since xmit_lock is meant to be a BH-disabling lock.

This is pretty much a straight text substitution except for a small
bug fix in winbond.  It currently uses
netif_stop_queue/spin_unlock_wait to stop transmission.  This is
unsafe as an IRQ can potentially wake up the queue.  So it is safer to
use netif_tx_disable.

The hamradio bits used spin_lock_irq but it is unnecessary as
xmit_lock must never be taken in an IRQ handler.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-17 21:30:14 -07:00
Jean Delvare
4f3a151a11 [PATCH] V4L/DVB (4045): Fixes recursive dependency for I2C
Mixing "depends on I2C" and "select I2C" within the media subsystem
leads to the following problem:
Warning! Found recursive dependency: I2C DVB_BUDGET DVB_BUDGET_PATCH
DVB_AV7110 VIDEO_SAA7146_VV VIDEO_SAA7146 I2C

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-24 18:48:28 -07:00
Mauro Carvalho Chehab
14ba3e7b31 V4L/DVB (4041): Fix compilation on PPC 64
Those functions don't exist on PPC64 architecture.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-23 16:08:29 -03:00
Jean Delvare
8b6c879c81 V4L/DVB (4040a): Fix the following section warnings:
reference to .init.text: from .text between 'dvb_bt8xx_probe'
(at offset 0x122c) and 'dvb_bt8xx_remove'
reference to .init.text: from .text between 'dvb_bt8xx_probe'
(at offset 0x1267) and 'dvb_bt8xx_remove'

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-23 15:56:50 -03:00
Manu Abraham
3c2c54910f V4L/DVB (4037): Make the bridge devices that depend on I2C dependant on I2C
Ref: Bugzilla 6179, 6589

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-23 15:56:38 -03:00
Adrian Bunk
9d8a51f801 V4L/DVB (3927): Fix VIDEO_DEV=m, VIDEO_V4L1_COMPAT=y
If CONFIG_VIDEO_DEV=m and CONFIG_VIDEO_V4L1_COMPAT=y, v4l1-compat should
be built as a module (currently, it isn't built at all leading to
problems with modules using it).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-23 15:56:20 -03:00
Ingo Molnar
8a2ae70a9b V4L/DVB (3965): Fix CONFIG_VIDEO_VIVI=y build bug
CONFIG_VIDEO_VIVI depends on CONFIG_VIDEO_BUF.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:25 -03:00
Adrian Bunk
68a26aecb3 V4L/DVB (3964): Bt8xx/bttv-cards.c: fix off-by-one errors
This patch fixes two off-by-one errors spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:23 -03:00
Andrew Morton
1095136dee V4L/DVB (3914): Vivi build fix
drivers/media/video/vivi.c: In function `vivi_map_sg':
drivers/media/video/vivi.c:799: error: `DMA_NONE' undeclared (first use in this function)
drivers/media/video/vivi.c:799: error: (Each undeclared identifier is reported only once
drivers/media/video/vivi.c:799: error: for each function it appears in.)

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:21 -03:00
Andrew Morton
765bf9770f V4L/DVB (3912): Sparc32 vivi fix
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:18 -03:00
Rusty Scott
dd31d5ac73 V4L/DVB (3829): Fix frequency values in the ranges structures of the LG TDVS H06xF tuners
Frequency range values in the current driver for the LG TDVS H06xF tuners
appear to have been a transposing of the 5 in the mid range 160-455 instead
of 165-450.
This patch corrects the pll programming for these tuners as per the datasheet.

Signed-off-by: Rusty Scott <rustys@ieee.org>
Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:16 -03:00
Mikhail Gusarov
7bbbc0a28e V4L/DVB (3826): Saa7134: Missing 'break' in Terratec Cinergy 400 TV initialization
There is a missing break in card initialization function. Might screw
up initialization of Terratec Cinergy 400 TV.

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:14 -03:00
Hans Verkuil
7d16eaa3d0 V4L/DVB (3825): Remove broken 'fast firmware load' from cx25840.
The fast firmware load hack in cx25840 uses private data. In fact, it
breaks pvrusb2 and doesn't work at all with ivtv. It is a unsafe
implementation and so it is removed.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:12 -03:00
Michael Krufky
5691c84739 V4L/DVB (3819): Cxusb-bluebird: bug-fix: power down corrupts frontend
This patch prevents a bug where the frontend is unable to tune after waking
from powered down state. Now, the device remains powered on until it is
disconnected, just like the windows driver. It seems that the bluebird
firmware is unable to successfully handle tuning after a powered down state.
This patch fixes all of the FusionHDTV Bluebird USB2 devices. The Medion
MD95700 will still behave as before, since it was unaffected by this bug.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:11 -03:00
Hans Verkuil
7157e2b6ff V4L/DVB (3813): Add support for TCL M2523_5N_E tuner.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:10 -03:00
Yeasah Pell
70047f9cca V4L/DVB (3804): Tweak bandselect setup fox cx24123
*) Allow forcing the bandselect value with a module parameter to 
facilitate determining the correct bandselect frequencies.
*) Changes the bandselect frequency thresholds based on experiments 
with the above parameter in conjunction with the values in the spec.

Signed-off-by: Yeasah Pell <yeasah at schwide.net>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:08 -03:00
Yeasah Pell
0e4558ab4a V4L/DVB (3803): Various correctness fixes to tuning.
*) Sets an additional tuner parameter (demodulator sample gain) that 
wasn't being set before.
*) Removes the low symbol rate tuner parameter tweaks in the previous 
patch -- it appears those tweaks are not necessary with the demodulator 
sample gain set correctly.
*) Cleanup and document the demodulator register initialization sequence.
*) Change set_fec routine to disable FEC auto scan when a specific code 
rate is selected.
*) Remove error message when reported FEC is invalid (which happens 
sometimes when the card has no signal)

Signed-off-by: Yeasah Pell <yeasah at schwide.net>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:07 -03:00
Yeasah Pell
dce1dfc2a5 V4L/DVB (3797): Always wait for diseqc queue to become ready before transmitting a diseqc message
The previous DISEQC code didn't wait, so it was unreliable

Signed-off-by: Yeasah Pell <yeasah at schwide.net>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:05 -03:00
Mauro Carvalho Chehab
caf970e09c V4L/DVB (3796): Add several debug messages to cx24123 code
Current debug messages at cx24123 are next to useless, since they don't
print the values sent/read to registers. With this patch, debug=1 will
show comprehensive messages. debug=2 will show also read/write operations
at I2C bus.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
2006-05-12 19:55:04 -03:00
Vadim Catana
a74b51fca9 V4L/DVB (3795): Fix for CX24123 & low symbol rates
- fixed the reception of channels with low symbol rates.
  ( The VGA1 and VGA2 offsets recommended by cx24109 docs for
  symbol rates from 1 to 5 MSps do not work. I changed them
  to values found experimentally. The charge pump current
  and FILTUNE voltage are now set to values recommended in
  the docs. This improves reception for symbol rates < 15 MSps.
  The values written in the SYSSymbolRate registers are calculated
  with better precision. )
		     
- fixed the cx24123_get_fec() function. It was returning the values
  for DCII mode.
- removed some unused variables

Signed-off-by: Vadim Catana <skystar at moldova.cc>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:02 -03:00
Michael Krufky
3a63fc4bfd V4L/DVB (3792): Kbuild: DVB_BT8XX must select DVB_ZL10353
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:55:00 -03:00
Eric Sesterhenn
7c908fbb01 V4L/DVB (3790): Use after free in drivers/media/video/em28xx/em28xx-video.c
In several places we use dev->devno right after we kfree() dev.  This fixes
coverity bug id #1065

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:59 -03:00
Mauro Carvalho Chehab
b37492be25 V4L/DVB (3788): Fix compilation with V4L1_COMPAT
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:58 -03:00
Mauro Carvalho Chehab
4fff598fc7 V4L/DVB (3782): Removed uneeded stuff from pwc Makefile
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:56 -03:00
Mauro Carvalho Chehab
c1d1ea9e0f V4L/DVB (3775): Add VIVI Kconfig stuff
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:54 -03:00
Mauro Carvalho Chehab
cd41e28e2d V4L/DVB (3774): Create V4L1 config options
V4L1 API is depreciated and should be removed soon from kernel. This patch
adds two new options, one to disable V4L1 drivers, and another to disable
V4L1 compat module. This way, it would be easy to check what still depends
on V4L1 stuff, allowing also to test if app works fine with V4L2 only support.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:53 -03:00
Jose Alberto Reguero
ea76ce526e V4L/DVB (3767): Pvr350 tv out (saa7127)
Witout this patch tv out don't work properly with my pvr350 card.

Signed-off-by: Jose Alberto Reguero <jareguero@telefonica.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:52 -03:00
Duncan Sands
bba3ad76a8 V4L/DVB (3766): Correct buffer size calculations in cx88-core.c
The computation in cx88_risc_buffer suffers from the mistake:
a non-zero padding value can cause more page borders to be crossed,
leading to big buffer over-runs.  
This patch changes the additive constant from 3 + 4 to 4
It also changees the constant in cx88_risc_databuffer from 3 + 4 to 2,
because 2 dwords are the correct vaule.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:50 -03:00
Trent Piepho
9175b8544f V4L/DVB (3763): Bug fix: Wrong tuner was used pcHDTV HD-3000 card
It looks like the HD3000 was prototyped with the 7610 tuner when
the driver was developed, but the cards appear to have always shipped
with the 7612 tuner and the driver was never adjusted for it.
The definition needs to be corrected.
- The HD-3000 was prototyped with a Thomson DTT7610,
  but production versions used a DTT7612 tuner.
- This patch changes both dvb-pll settings and V4L tuner type.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:49 -03:00
Mauro Carvalho Chehab
f1de3e7c5c V4L/DVB (3745): Fix a bug at pluto2 Makefile
When pluto2 were selected, all other module dependencies were
just discarded.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:47 -03:00
Andrew de Quincey
a064fad337 V4L/DVB (3743): Fix some more potential oopses
Spotted a couple more places where it fails to check if
dvb_register_adapter() fails.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:46 -03:00
Andrew de Quincey
6445401673 V4L/DVB (3742): Set tone/voltage again if the frontend was reinitialised
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:44 -03:00
Andrew de Quincey
71a8dffb07 V4L/DVB (3740): Fix oops in budget-av with CI
Now that the CI code reinitialises the frontend, need to move the CI
initialisation to after the frontend init in order to ensure the frontend is
always in a good state. Fixes an oops caused by the frontend being NULL as
well.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:43 -03:00
Sergey Vlasov
7a766f9ddd V4L/DVB (3738): Saa7134: Fix oops with disable_ir=1
When disable_ir=1 parameter is used, or when saa7134_input_init1()
fails for any other reason, dev->remote will remain NULL, and the
driver will oops in saa7134_hwinit2().  Therefore dev->remote must be
checked before dereferencing.

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:41 -03:00
Michael Krufky
a7286033f9 V4L/DVB (3731): Kbuild: drivers/media/video/bt8xx: remove $(src) from include path
- replaced '$(src)/..' with 'drivers/media/video'

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:40 -03:00
Andrew de Quincey
96b194c12e V4L/DVB (3726): Fix TT budget-ci 1.1 CI slots
It turns out the firmware on the TT budget-ci 1.1 slots doesn't generate
interrupts. This patch adds support for this using polling mode on these
slots.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:38 -03:00
Andrew de Quincey
f47f4763cd V4L/DVB (3725): Fix mutex in dvb_register_device to work.
This mutex is meant to stop two devices getting the same ID. dvbdev_get_free_id() 
scans the list of already allocated devices to find a free id.
Unfortunately, since the mutex is unlocked before the card is added to the
above list, it is still possible for two of them to get the same id.
Its debatable whether this mutex lock is actually needed, but I'm unwilling
to just remove it in case something does depend on it.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:37 -03:00
Duncan Sands
3203f94a25 V4L/DVB (3704): Fix some errors on bttv_risc_overlay
There are tree mistakes on bttv_risc_overlay.
1) When skip_odd is true, the number of lines for which
instructions are written is (height+1)/2, not height/2.
2) This occurs when clipping: the number of instruction bytes
written can be as much as 8 + 12*nclips, not 8 + 8*nclips, as
currently estimated.
3) Coverity check were wrong with nskips=0, since it means that
it can clipped at most one line.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-05-12 19:54:35 -03:00