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path: root/drivers/media/video/ivtv/ivtv-vbi.h
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* [media] ivtv: Return EFAULT when copy_from_user() fails in ↵Andy Walls2010-12-291-3/+4
| | | | | | | | | | | ivtv_write_vbi_from_user() If write() on a VBI device node fails due to a bad buffer pointer from userspace, we should notify the application properly with EFAULT, per the V4L2 API spec. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] ivtv: ivtv_write_vbi() should use copy_from_user() for user data buffersAndy Walls2010-12-291-1/+3
| | | | | | | | | | | | | | | | | ivtv_write_vbi() is used for both VBI data that came from the driver internally and VBI data that came from the user. However, it did not use copy_from_user() for reading the VBI data from the user buffers. This change adds a new version of the function, ivtv_write_vbi_from_user(), that uses copy_from_user() to read the VBI data provided via user buffers. This should resolve a sparse build warning reported by Dave Gilbert. Reported-by: Dr. David Alan Gilbert <linux at treblig.org> Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (6116): ivtv: VBI cleanups and fixesHans Verkuil2007-10-091-2/+2
| | | | | | | | | | | | | | 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>
* V4L/DVB (6091): ivtv: header cleanupHans Verkuil2007-10-091-0/+5
| | | | | | | | | | - add guards - remove unused header includes - move card-specific stuff from ivtv-driver.h to ivtv-cards.h - move YUV-specific stuff from ivtv-driver.h to ivtv-yuv.h Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a ↵Hans Verkuil2007-06-081-1/+1
| | | | | | | | | | | | | 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>
* V4L/DVB (5404): Merges VBI & YUV handling into a single work queue.Hans Verkuil2007-04-271-2/+1
| | | | | | 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>
* V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder/decoderHans Verkuil2007-04-271-0/+27
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>
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