Commit Graph

8071 Commits

Author SHA1 Message Date
David Ellingsworth 502d50166c V4L/DVB (13069): radio-mr800: ensure the radio is initialized to a consistent state
Ensure the radio is initialized to a consistent state.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:11 -02:00
David Ellingsworth 8a7cd16f1f V4L/DVB (13068): radio-mr800: remove device initialization from open/close
Remove device initialization from open/close.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:10 -02:00
David Ellingsworth 4e3616576e V4L/DVB (13067): radio-mr800: fix potential use after free
Fix portential use after free.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:10 -02:00
David Ellingsworth 26452bfef4 V4L/DVB (13066): radio-mr800: remove device removed indicator
Remove device removed indicator

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:09 -02:00
David Ellingsworth eac000a90e V4L/DVB (13065): radio-mr800: simplify locking in ioctl callbacks
Simplify locking in ioctl callbacks.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:09 -02:00
David Ellingsworth ceb99e1b5a V4L/DVB (13064): radio-mr800: simplify access to amradio_device
Simplify access to amradio_device.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:09 -02:00
David Ellingsworth d1939e4c5f V4L/DVB (13063): radio-mr800: remove unnecessary local variable
Remove unnecessary local variable.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:08 -02:00
David Ellingsworth 1b8bbb3c0a V4L/DVB (13062): radio-mr800: simplify error paths in usb probe callback
Simplify error paths in usb probe callback.

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:08 -02:00
David Ellingsworth 7a7d92e061 V4L/DVB (13061): radio-mr800: simplify video_device allocation
simplify video_device allocation

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:07 -02:00
David Ellingsworth 4aebc2893e V4L/DVB (13060): radio-mr800: implement proper locking
Implement proper locking

Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:07 -02:00
Antti Palosaari 0f01721256 V4L/DVB (13058): af9015: enable remote polling when eeprom contains 0x04
Looks like eeprom IR mode byte value 0x04 means there is remote
which should be polled. Patch enables polling also in case of 0x04.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari e1a7ff84a4 V4L/DVB (13057): af9015: add MSI DIGIVOX mini III remote
Support for MSI DIGIVOX mini III remote.
Thanks to Aleksandr V. Piskunov <aleksandr.v.piskunov@gmail.com>
Thanks to Roman <lists@hasnoname.de>

Cc: Aleksandr V. Piskunov <aleksandr.v.piskunov@gmail.com>
Cc: Roman <lists@hasnoname.de>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari 641342dde7 V4L/DVB (13056): af9015: add LeadTek Y04G0051 remote buttons
Add missing LeadTek Y04G0051 remote buttons.
Thanks to Matthew Skinner <matt@pcmus.com>

Cc: Matthew Skinner <matt@pcmus.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:06 -02:00
Antti Palosaari 0254294f37 V4L/DVB (13055): af9015: fix few typos
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:05 -02:00
Antti Palosaari 486ba12b7a V4L/DVB (13054): af9015: add USB ID for KWorld PlusTV DVB-T PCI Pro Card (DVB-T PC160-T)
Add USB ID 1b80:c161 for KWorld PlusTV DVB-T PCI Pro Card (DVB-T PC160-T).
Thanks to Andrew Cruickshank <atcrank@gmail.com> for reporting this.

Cc: Andrew Cruickshank <atcrank@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:05 -02:00
S?rgio Fortier 8a378e8543 V4L/DVB (13052): DiB0700: EvolutePC TvWay+ USB ISDB-Tb fullseg device support
Patch for EvolutePC TvWay+ USB ISDB-Tb fullseg device support.

Signed-off-by: S?rgio C Fortier <sergiofortier@yahoo.com.br>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:04 -02:00
Olivier Grenie eac1fe1050 V4L/DVB (13051): DiB7000P: improve rebostness of HAS_LOCK indicator
Update the dib7000p:
The status is HAS_LOCK only if the demod is able to decode the TPS. Sometimes, there is a TPS data lock, even if the demod is not able to decode it (ex: no RF signal).
For the STK7770P: correct value for the charge pump

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:04 -02:00
Olivier Grenie f8731f4dde V4L/DVB (13049): dib8000: SNR in 10th of dB
dib7000p/dib8000: added pid filtering

dib8000: the SNR is in 10th of dB (not in dB)
dib7000p and dib8000: added the pid filtering. This feature is enabled by module option (dvb-usb module).

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Igor M. Liplianin 8171c2059c V4L/DVB (13045): Fix debug messaging for stv0900 demod.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Mauro Carvalho Chehab 61b1e58f0e V4L/DVB (13044): dib0700: Be less verbose when an IR key is pressed
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:03 -02:00
Mauro Carvalho Chehab 4c5128b30d V4L/DVB (13043): Add support for Pixelview SBTVD IR
This IR uses NEC protocol. In order to use, dvb_usb_dib0700_ir_proto=0
should be used.

Cc: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:02 -02:00
Mauro Carvalho Chehab aa15c0a347 V4L/DVB (13042): Add NEC protocol to firmware v1.2 handler
Currently, dvb_usb_dib0700_ir_proto is supported only with firmwares
older than 1.2. Adds support for it also with the newer firmware.

This is needed in order to support PixelView SBTVD IR.

Cc: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:02 -02:00
Marek Vasut 8d64827172 V4L/DVB (13040): V4L2: Add a v4l2-subdev (soc-camera) driver for OmniVision OV9640 sensor
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:01 -02:00
Andrew Morton 4c4cb1b160 drivers/media/dvb/dvb-core/dvb_frontend.c: needs semaphore.h
Fixes:

  v4l/dvb_frontend.c: In function 'dvb_frontend_stop':
  v4l/dvb_frontend.c:707: error: implicit declaration of function 'init_MUTEX'

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14609

Reported-by: <tstrelar@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-01 16:32:19 -08:00
Alan Cox 361c95119a V4L/DVB (13530): Fix wrong parameter order in memset
Edwin Török found the following:

In function ‘memset’,
inlined from ‘ir_input_init’ at drivers/media/common/ir-functions.c:67:
/home/edwin/builds/linux-2.6/arch/x86/include/asm/string_64.h:61:
warning: call to ‘__warn_memset_zero_len’ declared with attribute
warning: memset used with constant zero length parameter; this could be
due to transposed parameters
memset(ir->ir_codes, sizeof(ir->ir_codes), 0);

In actual practice the only caller I can find happens to already have cleared
the buffer before calling ir_input_init.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-27 18:50:43 -02:00
Hans Verkuil 9807362e47 V4L/DVB (13481): sh_mobile_ceu_camera: fix compile warning
Trivial fix for this compile warning:

v4l/sh_mobile_ceu_camera.c:1789: warning: label 'exit_free_irq' defined but not used

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-27 18:27:49 -02:00
Robert Lowery 0bc3518019 V4L/DVB (13436): cxusb: Fix hang on DViCO FusionHDTV DVB-T Dual Digital 4 (rev 1)
Address yet another regression introduced by the introduction of the zl10353
disable_i2c_gate field.

djh - I unmangled the patch which apparently got screwed up in the user's
email client.

Signed-off-by: Robert Lowery <rglowery@exemail.com.au>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-27 18:27:48 -02:00
Geert Uytterhoeven d02b217a71 V4L/DVB (13412): SMS_SIANO_MDTV should depend on HAS_DMA
When building for Sun 3:

drivers/built-in.o: In function `smscore_unregister_device':
drivers/media/dvb/siano/smscoreapi.c:723: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `smscore_register_device':
drivers/media/dvb/siano/smscoreapi.c:365: undefined reference to `dma_alloc_coherent'

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-27 18:27:46 -02:00
Hans Verkuil 934949d816 V4L/DVB (13371): davinci: remove stray duplicate config pointer
The vpif_config struct was renamed to vpif_display_config, but there
is still a stray vpif_config *config pointer in vpif_display.c, preventing
it from compiling.

Remove this old duplicate pointer.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:04 -02:00
Antti Palosaari 28f4ddd1e8 V4L/DVB (13366): em28xx: fix Reddo DVB-C USB TV Box GPIO
Set device GPIOs only once. There is no need for .dvb_gpio to select
between analog and digital because device is digital only.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:03 -02:00
Kuninori Morimoto 055e05a08b V4L/DVB (13345): soc-camera: sh_mobile_ceu_camera: call pm_runtime_disable
pm_runtime_disable is needed if it failed or removed

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:03 -02:00
Guennadi Liakhovetski 64ff9ba5f1 V4L/DVB (13344): soc-camera: properly initialise the device object when reusing
Commit ef373189f62413803b7b816c972fc154c488cdc0 "fix use-after-free Oops,
resulting from a driver-core API change" fixed the Oops, but didn't correct
missing device object initialisation. This patch makes unloading and reloading
of soc-camera host- and client-drivers possible again.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:02 -02:00
Guennadi Liakhovetski f39c1ab3c3 V4L/DVB (13343): v4l: add more missing linux/sched.h includes
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:02 -02:00
Hans Verkuil 3addbb8075 V4L/DVB (13321): radio-gemtek-pci: fix double mutex_lock
Double mutexlock found by the Linux Driver Verification project and
reported by Alexander Strakh.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-26 19:38:01 -02:00
Michael Krufky 22370ef503 V4L/DVB (13314): saa7134: set ts_force_val for the Hauppauge WinTV HVR-1150
The Hauppauge WinTV HVR-1150 retail boards require the FORCE_TS_VALID bit
to be set in order to function properly. This change will work on the early
revisions on the board as well, but the final revision will not function
without this change.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:15 -02:00
Michael Krufky 4007a672ab V4L/DVB (13313): saa7134: add support for FORCE_TS_VALID mode for mpeg ts input
When FORCE_TS_VALID mode is enabled, the saa713x will accept MPEG TS input
without requiring TS_VALID set high.  This is required for some new boards
to function properly, due to the hardware design implementation.

The configuration is toggled within the board setup configuration.  Boards
that do not have this bit set will function as before with no change.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:15 -02:00
Laurent Pinchart 2e8961330e V4L/DVB (13311): uvcvideo: Fix compilation warning with 2.6.32 due to type mismatch with abs()
The abs() macro has changed in 2.6.32 and returns a long instead of an
int. Fix the driver to avoid compilation warnings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:14 -02:00
Laurent Pinchart a2e35af6c7 V4L/DVB (13309): uvcvideo: Ignore the FIX_BANDWIDTH for compressed video
The FIX_BANDWIDTH quirk tries to work around cameras requesting the
maximum bandwidth regardless of the image size by computing a bandwidth
estimate. This works only for uncompressed frames.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:14 -02:00
Jean Delvare 7157fbd0ed V4L/DVB (13287): ce6230 - saa7164-cmd: Fix wrong sizeof
Which is why I have always preferred sizeof(struct foo) over
sizeof(var).

Cc: Antti Palosaari <crope@iki.fi>
Acked-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:13 -02:00
Jonathan Cameron d514edac5d V4L/DVB (13286): pxa-camera: Fix missing sched.h
Required for wakeup call.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:13 -02:00
Theodore Kilgore 32345b0596 V4L/DVB (13264): gspca_mr97310a: Change vstart for CIF sensor type 1 cams
gspca_mr97310a: Change vstart for CIF sensor type 1 cams

This fixes the distortion at the end of the frame, and avoids the bad frame
dropping done because of this distortion, trippling the framerate!

Signed-off-by: Theodore Kilgore <kilgota@banach.math.auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:12 -02:00
Erik Andrén 81191f694c V4L/DVB (13257): gspca - m5602-s5k4aa: Add vflip for Fujitsu Amilo Xi 2528
Adds a vflip quirk for the Fujitsu Amilo Xi 2528. Thanks to Evgeny for the report.

Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:12 -02:00
Erik Andrén 2339a1887d V4L/DVB (13256): gspca - m5602-s5k4aa: Add another MSI GX700 vflip quirk
Adds another vflip quirk for the MSI GX700.
Thanks to John Katzmaier for reporting.

Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:11 -02:00
Erik Andrén b6ef8836c1 V4L/DVB (13255): gspca - m5602-s5k4aa: Add vflip quirk for the Bruneinit laptop
Adds a vflip quirk for the Bruneinit laptop. Thanks to Jörg for the report

Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:11 -02:00
Stefan Richter dcff9cfe43 V4L/DVB (13240): firedtv: fix regression: tuning fails due to bogus error return
Since 2.6.32(-rc1), DVB core checks the return value of
dvb_frontend_ops.set_frontend.  Now it becomes apparent that firedtv
always returned a bogus value from its set_frontend method.

CC: stable@kernel.org
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:11 -02:00
Henrik Kurelid c94115ffc4 V4L/DVB (13237): firedtv: length field corrupt in ca2host if length>127
This solves a problem in firedtv that has become major for Swedish DVB-T
users the last month or so.  It will most likely solve issues seen by
other users as well.

If the length of an AVC message is greater than 127, the length field
should be encoded in LV mode instead of V mode. V mode can only be used
if the length is 127 or less. This patch ensures that the CA_PMT
message is always encoded in LV mode so PMT message of greater lengths
can be supported.

Signed-off-by: Henrik Kurelid <henrik@kurelid.se>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:10 -02:00
Mike Isely 1f95725755 V4L/DVB (13230): s2255drv: Don't conditionalize video buffer completion on waiting processes
The s2255 driver had logic which aborted processing of a video frame
if there was no process waiting on the video buffer in question.  That
simply doesn't work when the application is doing things in an
asynchronous manner.  If the application went to the trouble to queue
the buffer in the first place, then the driver should always attempt
to complete it - even if the application at that moment has its
attention turned elsewhere.  Applications which always blocked waiting
for I/O on the capture device would not have been affected by this.
Applications which *mostly* blocked waiting for I/O on the capture
device probably only would have been somewhat affected (frame lossage,
at a rate which goes up as the application blocks less).  Applications
which never blocked on the capture device (e.g. polling only) however
would never have been able to receive any video frames, since in that
case this "is anyone waiting on this?" check on the buffer never would
have evalutated true.  This patch just deletes that harmful check
against the buffer's wait queue.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: stable@kernel.org
2009-11-07 12:55:10 -02:00
Michael Krufky 78c948ab0c V4L/DVB (13202): smsusb: add autodetection support for three additional Hauppauge USB IDs
Add support for three new Hauppauge Device USB IDs:

2040:b900
2040:b910
2040:c000

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:09 -02:00
Devin Heitmueller 96fbf771d8 V4L/DVB (13190): em28xx: fix panic that can occur when starting audio streaming
Because the counters were not reset when starting up streaming, they would
be reused from the previous run.  This can result in cases such that when the
second instance of streaming starts up, the "cnt" variable in
em28xx_audio_isocirq() can end up being negative, resulting in attempting to
write to memory before the start of runtime->dma_area (as well as having a
negative number of bytes to copy).

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:08 -02:00
Mike Isely 2de26c0a4a V4L/DVB (13170): bttv: Fix reversed polarity error when switching video standard
The bttv driver function which handles switching of the video standard
(set_tvnorm() in bttv-driver.c) includes a check which can optionally
also reset the cropping configuration to a default value.  It is
"optional" based on a comparison of the cropcap parameters of the
previous vs the newly requested video standard.  The comparison is
being done with a memcmp(), a function which only returns a true value
if the comparison actually fails.

This if-statement appears to have been written to assume wrong
memcmp() semantics.  That is, it was re-initializing the cropping
configuration only if the new video standard did NOT have different
cropcap values.  That doesn't make any sense.  One definitely should
reset things if the cropcap parameters are different - if there's any
comparison to made at all.

The effect of this problem was that a transition from, say, PAL to
NTSC would leave in place old cropping setup that made sense for the
PAL geometry but not for NTSC.  If the application doesn't care about
cropping it also won't try to reset the cropping configuration,
resulting in an improperly cropped video frame.  In the case I was
testing this actually caused black video frames to be displayed.

Another interesting effect of this bug is that if one does something
which does NOT change the video standard and this function is run,
then the cropping setup gets reset anyway - again because of the
backwards comparison.  It turns out that just running anything which
merely opens and closes the video device node (e.g. v4l-info) will
cause this to happen.  One can argue that simply opening the device
node and not doing anything to it should not mess with any of its
state - but because of this behavior, any TV app which does such
things (e.g. xawtv) probably therefore doesn't see the problem.

The solution is to fix the sense of the if-statement.  It's easy to
see how this mistake could have been made given how memcmp() works.
The patch is therefore removal of a single "!" character from the
if-statement in set_tvnorm in bttv-driver.c.

Signed-off-by: Mike Isely <isely@pobox.com>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-11-07 12:55:08 -02:00