- 05 Dec, 2009 40 commits
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Andy Walls authored
The encoder was not honoring the MDL size sent in DE_SET_MDL mailbox commands. This change adjusts the size of the last buffer in an MDL, as reported to the firmware, so that the encoder will send the exact amount of bytes we specify per MDL transfer. This eliminates tearing in YUV playback when using non-default YUV buffer sizes. Signed-off-by:
Andy Walls <awalls@radix.net> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Andy Walls authored
Fix YUV capture such that the encoder will pass one frame per transfer. This will allow the application to maintain frame alignment when a transfer from the encoder is missed due to high system latency in service the CX23418 IRQ. Also force YUV buffer sizes to be specified in multiples of 33.75 kB, the smalled amount of buffer sizes need to store a complete set of HM12 4:2:0 macroblocks specifying 32 lines of the frame. A full 60Hz/525 line screen requires 15 * 33.75 kB per frame and a full 50Hz/625 line screen requires 18 * 33.75 kB per frame so the default buffer size is 3 * 33.75 kB, requiring exactly 5 or 6 buffers per MDL respectively. The bytes needed per frame and hence MDL need not be the bytes in an integer number of buffers. However, if frame artifacts are seen with scaled screen sizes, the YUV buffer size can be set 34 kB (33.75 kB) to get rid of the artifacts at the cost of more copies between the kernel and userspace. Signed-off-by:
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Andy Walls authored
Add a Memory Descriptor List (MDL) layer to buffer handling to implement scatter-gather I/O. Currently there is still only 1 buffer per MDL. Signed-off-by:
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Andy Walls authored
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Andy Walls authored
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Andy Walls authored
Rename type in anticipation of implementing a struct cx18_mdl type that actually keeps track of a memory descriptor list. Signed-off-by:
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Jean-Francois Moine authored
Signed-off-by:
Jean-Francois Moine <moinejf@free.fr> Signed-off-by:
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Jean-Francois Moine authored
- the ov772x brightness was not setteble (fixed by M. Thrun) - the set_frame_rate function does not work for ov965x Signed-off-by:
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Jean-Francois Moine authored
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Jean-Francois Moine authored
- 320x240 resolution added - controls added - different sd_desc tables Signed-off-by:
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Jean-Francois Moine authored
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Jean-Francois Moine authored
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Márton Németh authored
Add debug register write interface to pac7302 to be able to set for example the edge detect mode (bit 2 register 0x55) or the test pattern (bit 0..3, register 0x72) and test overlay (bit 4, register 0x72) from the user space. Only write of register page 0 is supported by this patch. Signed-off-by: Márton NÃ
© meth <nm127@freemail.hu> Signed-off-by: -
Márton Németh authored
Signed-off-by: Márton NÃ
© meth <nm127@freemail.hu> Signed-off-by: -
Jonathan Corbet authored
For whatever reason, the device structure pointer to videobuf_queue_vmalloc_init is typed "void *", even though it's passed right through to videobuf_queue_core_init(), which expects a struct device pointer. The other videobuf implementations use struct device *; I think vmalloc should too. Signed-off-by:
Jonathan Corbet <corbet@lwn.net> Signed-off-by:
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Márton Németh authored
The return value may be used uninitialized when the size parameter happens to be 0. Signed-off-by:
Márton Németh <nm127@freemail.hu> Signed-off-by:
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Márton Németh authored
Explicitly cast page count in the debug message. Signed-off-by:
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Márton Németh authored
Use strlcat() to append a string to the previously created first part. The semantic match that finds this kind of problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression dev; expression phys; expression str; expression size; @@ usb_make_path(dev, phys, size); - strlcpy(phys, str, size); + strlcat(phys, str, size); // </smpl> Signed-off-by:
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Julia Lawall authored
Error handling code following a kzalloc should free the allocated data. Similarly for usb-alloc urb. The semantic match that finds the first problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Roel Kluin authored
The reg_pair2[j].reg was tested twice. Cc: <stable@kernel.org> Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Acked-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Stefan Richter authored
All read transactions initiated by firedtv are only quadlet-sized, hence the backend->read call can be simplified a little. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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Stefan Richter authored
Packet DMA buffers are queued either initially all at once (then, a queueing failure will cause firedtv to release the DMA context as a whole) or subsequently one by one as they recycled after use (then a failure is extremely unlikely). Therefore we can be a little less cautious when counting at which packet buffer to set the interrupt flag. Signed-off-by:
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Stefan Richter authored
Cache only addresses of whole pages, not of each buffer chunk. Besides, page addresses can be obtained by page_address() instead of kmap() since they were allocated in lowmem. Signed-off-by:
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Igor M. Liplianin authored
Add Prof 7301 PCI DVB-S2 card The card based on stv0903 demod, stb6100 tuner. Signed-off-by:
Igor M. Liplianin <liplianin@me.by> Signed-off-by:
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Huang Weiyi authored
Remove duplicated #include('s) in drivers/media/dvb/pt1/pt1.c Signed-off-by:Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by:
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Oliver Neukum authored
Patch adds autosuspend support for mr800 radio driver. Signed-off-by:
Oliver Neukum <oliver@neukum.org> Acked-by:
Alexey Klimov <klimov.linux@gmail.com> Signed-off-by:
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Stefan Richter authored
The firedtv DVB driver will now work not only on top of the old ieee1394 driver stack but also on the new firewire driver stack. Alongside to the firedtv-1394.c backend for driver binding and I/O, the firedtv-fw.c backend is added. Depending on which of the two 1394 stacks is configured, one or the other or both backends will be built into the firedtv driver. This has been tested with a DVB-T and a DVB-C box on x86-64 and x86-32 together with a few different controllers (Agere FW323, a NEC chip, TI TSB82AA2, TSB43AB22/A, VIA VT6306). Signed-off-by:
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Stefan Richter authored
Add #include <dvb_demux.h> for dvb_dmx_swfilter_packets(). This was already indirectly included via firedtv.h, but don't rely on it. The 4 bytes which were referred to as FIREWIRE_HEADER_SIZE are actually the source packet header from IEC 61883-4 (MPEG2-TS data transmission over 1394), not e.g. the IEEE 1394 isochronous packet header. So choose a more precise name. Also, express the payload size as a preprocessor constant too. Signed-off-by:
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Stefan Richter authored
Preparation for the port of firedtv to the firewire-core kernel API: The fdtv->backend->lock() hook and thus the CMP code is slightly changed to better fit with the new API. Signed-off-by:
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Stefan Richter authored
Preparation for the port of firedtv to the firewire-core kernel API: Canceling of the remote control workqueue job is factored into firedtv-rc.c. Plus trivial whitespace change. Signed-off-by:
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Julia Lawall authored
This initialization of the value of audio_mode is the one used if nothing matches in the subsequent switch. The variable audio_mode is subsequently assigned to constants such as TUNER_AUDIO_MONO and TUNER_AUDIO_STEREO. TUNER_AUDIO_STEREO has the same value as V4L2_TUNER_MODE_STEREO, so it would seem better to use that value here. Signed-off-by:
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hiranotaka@zng.jp authored
Signed-off-by:
HIRANO Takahito <hiranotaka@zng.info> Signed-off-by:
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Marton Nemeth authored
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Marton Nemeth authored
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Jean-Francois Moine authored
Signed-off-by:
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Jean-Francois Moine authored
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Márton Németh authored
The valid values for these controls are 0..3 (lower two bits) which was identified by trial and error on Labtec Webcam 2200 (USB ID 093a:2626). The upper 6 bits are ignored on page 0, registers 0xc5 and 0xc7 by the camera. Signed-off-by: Márton NÃ
© meth <nm127@freemail.hu> Signed-off-by: -
Jean-Francois Moine authored
- the i2c base address is now taken from the sn9c1xx register table Signed-off-by:
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Márton Németh authored
The usb_control_msg() can fail any time. Only continue writing sequence if there was no error with the previous write. If there was any problem stop sending URBs and propagate the error to the gspca_main. Signed-off-by: Márton NÃ
© meth <nm127@freemail.hu> Signed-off-by: -
Márton Németh authored
The stream off command is sent to the device twice, one is enough. Signed-off-by: Márton NÃ
© meth <nm127@freemail.hu> Signed-off-by:
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