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V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a workhandler

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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>
This commit is contained in:
Hans Verkuil 2007-05-19 14:07:16 -03:00 • committed by Mauro Carvalho Chehab
commit dc02d50a6d
7 changed files with 209 additions and 86 deletions
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