Commit graph

8 commits

Author SHA1 Message Date
Mike Isely
13e027a8bf V4L/DVB (7713): pvrusb2: Implement cleaner DVB kernel thread shutdown
Earlier fix to handle DVB feed thread aborts was overly-aggressive.
We can take better advantage of what kthread_stop() can do.  This
change simplifies things.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:49 -03:00
Mike Isely
07b80264c3 V4L/DVB (7708): pvrusb2-dvb: Fix stuck thread on streaming abort
If the device fails to stream, the feed thread will block forever
waiting for buffers.  But while in this state it was not looking for
an exit condition from the driver DVB interface.  This caused the
thread to jam.  Implement a new stop flag (which will be set
appropriately) to tell the thread to stop.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:48 -03:00
Mike Isely
c5317b17f6 V4L/DVB (7692): pvrusb2-dvb: Further clean up dvb init/tear-down
Move pvr2_dvb_adapter usage out of the pvrusb2 driver core - it's
really private to the pvrusb2-dvb module and nothing outside of the
dvb implementation should care about it.  Creation / destruction of
the pvr2_dvb_adapter instance is now contained entirely within
pvrusb2-dvb.c.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:47 -03:00
Mike Isely
7dcc48fb55 V4L/DVB (7690): pvrusb2-dvb: Remove digital_up flag
Other pvrusb2-dvb changes have made the digital_up flag obsolete.  So
kill it.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:46 -03:00
Mike Isely
891d99efc5 V4L/DVB (7689): pvrusb2-dvb: Rework module tear-down
Rather than making an explicit call to tear down the pvrusb2-dvb
module, use the callback in the pvr2_channel structure.  This has the
advantage that now tear-down only happens when it makes sense.  The
previous implementation had scenarios where it was possible for the
tear-down call to happen without a prior initialization.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:46 -03:00
Mike Isely
a36416d0a7 V4L/DVB (7688): pvrusb2: Clean up dvb streaming start/stop
Eliminate the need for a separate pvr2_dvb_fh; since in the DVB
context there can only ever be a single instance then there is no need
for a separate instance to handle streaming state.  This simplifies
the module.  Also move streaming start/stop out of the feed thread and
into the driver's main context - which makes it possible for streaming
start up failures to be detected by the DVB core.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:46 -03:00
Michael Krufky
d8abe97d00 V4L/DVB (7681): pvrusb2-dvb: start working on streaming / buffer handling code
start work on streaming / buffer handling code to feed the software demux

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:46 -03:00
Michael Krufky
04910bdc5c V4L/DVB (7679): pvrusb2: add DVB API framework
Add basic framework for the DVB API.  This is enough to control the
tuner & demod of the digital frontend, but the stream & buffer handling
is still missing.

Additional note from Mike Isely <isely@pobox.com> - also, since these
changes are still very experimental arrange for DVB changes to be
compiled in via new CONFIG_VIDEO_PVRUSB2_DVB option, for now.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24 14:09:46 -03:00