- 24 Apr, 2008 40 commits
-
-
Mauro Carvalho Chehab authored
The usage of videobuf-vmalloc allows to cleanup em28xx logic. Also, it reduced its size by about 5.42% on i386 arch (and about 7.5% on x86_64): 39113 4876 40 44029 abfd old/em28xx.ko 36731 4868 40 41639 a2a7 /home/v4l/master/v4l/em28xx.ko Also, the preliminary tests, made on a single core 1.5 MHz Centrino showed that CPU usage reduced from 42%-75% to 28%-33% (reports from "top") command. A test with time command presented an even better result: This is the performance tests I did, running code_example to get 1,000 frames @29.995 Hz (about 35 seconds of stream), tested on a i386 machine, running at 1,5GHz: The old driver: $ time -f "%E: %Us User time, %Ss Kernel time, %P CPU used" ./capture_example 0:34.21: 8.22s User time, 25.16s Kernel time, 97% CPU used The videobuf-based driver: $ time -f "%E: %Us User time, %Ss Kernel time, %P CPU used" ./capture_example 0:35.36: 0.01s User time, 0.05s Kernel time, 0% CPU used Conclusion: The time consumption to receive the stream where reduced from about 33.38 seconds to 0.05 seconds. Signed-off-by:Mauro Carvalho Chehab <mchehab@infradead.org>
-
Janne Grunau authored
The adapter_nr module options can be used to allocate static adapter numbers on a driver level. It avoids problems with changing DVB apapter numbers after warm/cold boot or device unplugging and repluging. Each driver holds DVB_MAX_ADAPTER long array of the preferred order of adapter numbers. options dvb-usb-dib0700 adapter_nr=7,6,5,4,3,2,1,0 would result in a reversed allocation of adapter numbers. With adapter_nr=2,5 it tries first to get adapter number 2 and 5. If both are already in use it will allocate the lowest free adapter number. Signed-off-by:
Janne Grunau <janne-dvb@grunau.be> Acked-by:
Hermann Pitton <hermann.pitton@arcor.de> Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
-
Mauro Carvalho Chehab authored
If frontend is not attached, both cx88-dvb and saa7134-dvb don't register DVB. However, dvb unregister were inconditionally called. Due to that, an OOPS is generated. Signed-off-by: -
Hans Verkuil authored
Added the last remaining out-of-tree kernel driver from the ivtv project. The saa717x is used in several Japanese cards and a Russian card. The driver is not complete in that only NTSC is supported and no PAL/SECAM. Hopefully this will be added in the future. Signed-off-by:
Takahiro Adachi <tadachi@tadachi-net.com> Signed-off-by:
Kyuma Ohta <whatisthis@jcom.home.ne.jp> Signed-off-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
-
Hans Verkuil authored
Signed-off-by:
-
Oliver Endriss authored
Implement support for Fujitsu Siemens DVB-T Activy Budget, sub-system id 0x1131:0x5f61. Signed-off-by:
Oliver Endriss <o.endriss@gmx.de> Signed-off-by:
-
Christoph Pfister authored
Quoting the commit introducing reinitialise_demod (3984 / by adq): "These cards [KNC1 DVBT and DVBC] need special handling for CI - reinitialising the frontend device when the CI module is reset." Apparently my 1894:0010 also needs that fix, because once you initialise CI/CAM you lose lock. Signed-off-by:
Christoph Pfister <pfister@linuxtv.org> Signed-off-by:
-
Christoph Pfister authored
The current ci implementation doesn't accept 0xff when reading data bytes (address == 0), thus breaks cams which report a buffer size of 0x--ff like my orion one. Remove the 0xff check altogether, because validation is really the job of a higher layer. Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Matthias Schwarzott authored
Add support for composite and s-video inputs on Avermedia DVB-S Pro and DVB-S Hybrid+FM cards (both labled A700) to the saa7134 driver. XC2028 support for Hybrid+FM is still missing. Signed-off-by:
Matthias Schwarzott <zzam@gentoo.org> Reviewed-by:
-
Dâniel Fraga authored
The attached patch adds complete remote control support for Powercolor Real Angel 330. Signed-off-by:
Daniel Fraga <fragabr@gmail.com> Signed-off-by:
-
Dâniel Fraga authored
The attached patch fixes gpio references for Powercolor Real Angel 330. Signed-off-by:
-
Thierry MERLE authored
__PRETTY_FUNCTION__ has no sense in C lang context. Rename it as __func__ Signed-off-by:
Thierry MERLE <thierry.merle@free.fr> Signed-off-by:
-
Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
-
Guennadi Liakhovetski authored
All drivers should provide a spinlock to be used in videobuf operations. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Reviewed-by:
Brandon Philips <bphilips@suse.de> Signed-off-by:
-
Guennadi Liakhovetski authored
Function pointers and the driver owner are not expected to change throughout soc-camera host's life. Extract them into an operations struct. Signed-off-by:
-
Brandon Philips authored
V4L/DVB (7494): videobuf-dma-sg.c: Avoid NULL dereference and add comment about backwards compatibility Signed-off-by:
-
Brandon Philips authored
Add a waitqueue to wait on when there are no buffers in the buffer queue. DQBUF waits on this queue without holding vb_lock to allow a QBUF to happen. Once a buffer has been queued we recheck that the queue is still streaming and wait on the new buffer's waitqueue while holding the vb_lock. The driver should come along in a timely manner and put the buffer into its next state finishing the DQBUF. By implementing this waitqueue it also brings the videobuf DQBUF up to spec and it now blocks on O_NONBLOCK even when no buffers have been queued via QBUF: "By default VIDIOC_DQBUF blocks when no buffer is in the outgoing queue." - V4L2 spec Signed-off-by:
-
Brandon Philips authored
vivi previously had a very complex queuing system and held spinlocks while doing copy_to_user, kmalloc, etc. This caused the driver to easily deadlock when a multi-threaded application used it and revealed bugs in videobuf too. This replaces the copy_to_user with memcpy since we were never copying to user space addresses. And makes the kmalloc atomic. Signed-off-by:
-
