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V4L/DVB: ivtv: Really stop capture on device close 

When a capture is started, the firmware also appears to start a secondary
stream. Unless this secondary stream is also stopped, the encoder will remain
active and not reinitialise for the next capture. Unfortunately, setting up
the video source can glitch the encoder and result in undesirable effects that
this initialisation will clear.

Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Ian Armstrong 2010-03-06 21:37:04 -03:00 committed by Mauro Carvalho Chehab
parent 283328c29d
commit 9a766d55b7
1 changed files with 4 additions and 0 deletions
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4
drivers/media/video/ivtv/ivtv-streams.c
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@ -829,6 +829,10 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end)
ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST);
}
/* Raw-passthrough is implied on start. Make sure it's stopped so
the encoder will re-initialize when next started */
ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, 1, 2, 7);
wake_up(&s->waitq);
return 0;