diff options
author | Andy Walls <awalls@md.metrocast.net> | 2012-09-02 19:13:14 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-18 13:26:50 -0300 |
commit | 269c11fbac4f7b4ed58e77f3049b64b55a342234 (patch) | |
tree | 53e01d0a8f9cd1cd488f2d3e2838a79edf1ccfe6 /drivers/media/pci/ivtv/ivtv-fileops.c | |
parent | 6d60805fd2e8103fafa02fcf6448446229ebd511 (diff) | |
download | linux-stable-269c11fbac4f7b4ed58e77f3049b64b55a342234.tar.gz linux-stable-269c11fbac4f7b4ed58e77f3049b64b55a342234.tar.bz2 linux-stable-269c11fbac4f7b4ed58e77f3049b64b55a342234.zip |
[media] ivtv, ivtv-alsa: Add initial ivtv-alsa interface driver for ivtv
This is a cut-and-paste port of the cx18-alsa driver to
create an ivtv-alsa interface module for the ivtv driver.
It is not actually hooked-up to the PCM stream DMA buffers
from the ivtv driver yet. That will be done in a coming change,
since that portion is so very different from the cx18 driver.
This code has all or more of the bugs and shortcomings of the
cx18-alsa interface driver: inconsistent use of itvsc->slock,
ivtv-alsa-mixer.c is dead code, assumes 48 ksps regardless
of the actual setting of the audio capture, problems with
proper struct ivtv and struct ivtv_stream housekeeping,
struct ivtv_open_id.v4l2_fh abuse, and $DIETY knows what else.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/ivtv/ivtv-fileops.c')
-rw-r--r-- | drivers/media/pci/ivtv/ivtv-fileops.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-fileops.c b/drivers/media/pci/ivtv/ivtv-fileops.c index 88bce907cdef..7f2eb5f62fd1 100644 --- a/drivers/media/pci/ivtv/ivtv-fileops.c +++ b/drivers/media/pci/ivtv/ivtv-fileops.c @@ -41,7 +41,7 @@ associated VBI streams are also automatically claimed. Possible error returns: -EBUSY if someone else has claimed the stream or 0 on success. */ -static int ivtv_claim_stream(struct ivtv_open_id *id, int type) +int ivtv_claim_stream(struct ivtv_open_id *id, int type) { struct ivtv *itv = id->itv; struct ivtv_stream *s = &itv->streams[type]; @@ -96,6 +96,7 @@ static int ivtv_claim_stream(struct ivtv_open_id *id, int type) set_bit(IVTV_F_S_INTERNAL_USE, &s_vbi->s_flags); return 0; } +EXPORT_SYMBOL(ivtv_claim_stream); /* This function releases a previously claimed stream. It will take into account associated VBI streams. */ @@ -146,6 +147,7 @@ void ivtv_release_stream(struct ivtv_stream *s) clear_bit(IVTV_F_S_CLAIMED, &s_vbi->s_flags); ivtv_flush_queues(s_vbi); } +EXPORT_SYMBOL(ivtv_release_stream); static void ivtv_dualwatch(struct ivtv *itv) { |