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From: Trent Piepho <xyzzy@speakeasy.org>
Add -include linux/version.h to the cflags. Now code can have backward
compatibility test without including compat.h first.
Linux headers included from compat.h are removed, so that code will get
the same headers when compiling in v4l-dvb as it does in the kernel.
Many drivers have compat.h moved to the end of their include list, as
this lets compat.h do things it can't do at the beginning. Such as test
of something is defined to include compat code, or to put a wrapper
around a function without changing the function's name.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mike Isely <isely@pobox.com>
Trying to temporarily check that the stream is not claimed during open
of the radio device is at best a race condition. What's to stop
another app from claiming the stream anyway the instant after the
check is done? The implementation for this was dicey anyway. So it's
removed. The only "price" for this is that if /dev/radioX is opened
while streaming video, then the video stream is just going to switch
to radio mode anyway. If a user does this, he gets what he expects...
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Pantelis Koukousoulas <pakt223@freemail.gr>
Add (and expose) a new function, pvr2_channel_check_stream_no_lock(), in
pvrusb2-context.c. This is hopefully the last V4L2 interface related patch
to change anything outside pvrusb2-v4l2.c.
We need this to implement the open() for the radio device. The reason is
that within the *enter_context() section of open() we need to ensure nobody
is streaming and if we cannot, we should cleanup after ourselves and return
-EBUSY. We cannot just use claim_stream() because
1) That would cause a deadlock trying to re-acquire the context lock
2) We only need to ensure that nobody is streaming. We don't need to
actually acquire the stream.
Again, this is a kinda ugly patch. Feel free to improve.
Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
The correct mutex header to grab is linux/mutex.h, and while
asm/mutex.h seems to work for x86 architecture, it has been reported
not to work for amd64 architecture. So let's just do this right.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
The PVR USB2 hardware seems to like emitting some garbage data before
real stream data appears. This problem has been present all along,
but with the older 29xxx model series it was benign because the
garbage data in question didn't seem to bother mpeg2 players. But
with the 24xxx model series, the garbage data includes what looks like
a corrupted mpeg2 packet, which kills mythtv and ffmpeg. This fix
causes incoming stream data to be discarded until valid mpeg2 data is
seen.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Notice and track actual hardware type of device. This information is
also used now to select the correct FX2 firmware file to load (because
they can be different, unfortunately).
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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