[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>
diff --git a/drivers/media/pci/ivtv/ivtv-streams.c b/drivers/media/pci/ivtv/ivtv-streams.c
index f08ec17..ea61352 100644
--- a/drivers/media/pci/ivtv/ivtv-streams.c
+++ b/drivers/media/pci/ivtv/ivtv-streams.c
@@ -629,6 +629,7 @@
atomic_inc(&itv->capturing);
return 0;
}
+EXPORT_SYMBOL(ivtv_start_v4l2_encode_stream);
static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s)
{
@@ -885,6 +886,7 @@
return 0;
}
+EXPORT_SYMBOL(ivtv_stop_v4l2_encode_stream);
int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts)
{