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path: root/drivers/media/video/ivtv/ivtv-vbi.c
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2009-03-30V4L/DVB (11091): cx18, ivtv: Ensure endianess for linemasks in VBI embedded ↵Andy Walls
in MPEG stream The sliced VBI payloads that cx18 and ivtv would insert in the MPEG stream did not have consistent endianess for the linemasks in the payload (a big endian platform would write them out big endian). This change ensures the linemasks are always stored as little-endian in the MPEG stream to ensure cross platform consistency in parsing the generated MPEG stream. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30V4L/DVB (9835): ivtv/ivtvfb: convert to v4l2_device/v4l2_subdev.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-13V4L/DVB (9162): ivtv: fix raw/sliced VBI mixupHans Verkuil
The service_set field was used in saa7115 and cx25840 to determine whether raw or sliced VBI was desired. This is incorrect since it is perfectly valid to select sliced VBI with a service_set of 0. Instead these drivers should checked on VIDIOC_S_FMT whether the type field matches the raw or sliced VBI type. Updated ivtv accordingly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-09-03V4L/DVB (8648): ivtv: improve CC supportHans Verkuil
- change the work-queue to a single threaded high prio workqueue - use DMA instead of PIO for the sliced VBI data. - remove some incorrect tests - increase the internal VBI capture queue size for sliced VBI packets - ignore duplicate VBI lines With these changes it should finally be possible to get reliable closed captions. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14V4L/DVB (7852): ivtv: prefix ivtv external functions with ivtv_Hans Verkuil
Fix conflict with cx18 driver. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6116): ivtv: VBI cleanups and fixesHans Verkuil
Besides some VBI cleanups this patch also fixes a subtle problem with the VBI re-insertion stream where the PIO work handler wasn't called quickly enough, resulting in occasional corrupt data. Furthermore the CC output didn't disable CC correctly and at the right time, causing duplicates to be sent. An saa7127 fix for VPS output was also added: the wrong data was sent. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6092): ivtv: more cleanups, merged ivtv-audio.c and ivtv-video.c ↵Hans Verkuil
into ivtv-routing.c Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6049): ivtv: fix VBI reinsertion decodingHans Verkuil
- Invalid VBI packets should result in an empty VBI frame, not in an zero-sized frame that causes the reader to incorrectly return a 0 (EOF) value. - PIO completion should not reset the sg_pending_size field. - The DMA offset detection code should be ignored for PIO transfers: it somehow messes up the data on the card and is not needed anyway for PIO. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5769): Ivtv: fix broken VBI output supportHans Verkuil
The old service_set_out setting was still tested, even though it no longer was ever set and was in fact obsolete. This meant that everything that was written to /dev/vbi16 was ignored. Removed the service_set_out variable altogether and now it works again. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-06-08V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a ↵Hans Verkuil
workhandler Sliced VBI transfers use PIO instead of DMA. This was done inside the interrupt handler, but since PIO accesses are very slow this meant that a lot of time was spent inside the interrupt handler. All PIO copies are now moved to a workqueue. This should fix various issues with missing time ticks and remote key hits. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5404): Merges VBI & YUV handling into a single work queue.Hans Verkuil
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder/decoderHans Verkuil
It took three core maintainers, over four years of work, eight new i2c modules, eleven new V4L2 ioctls, three new DVB video ioctls, a Sliced VBI API, a new MPEG encoder API, an enhanced DVB video MPEG decoding API, major YUV/OSD contributions from Ian and John, web/wiki/svn/trac support from Axel Thimm, (hardware) support from Hauppauge, support and assistance from the v4l-dvb people and the many, many users of ivtv to finally make it possible to merge this driver into the kernel. Thank you all! Signed-off-by: Kevin Thayer <nufan_wfk@yahoo.com> Signed-off-by: Chris Kennedy <c@groovy.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: John P Harvey <john.p.harvey@btinternet.com> Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>