summaryrefslogtreecommitdiff
path: root/drivers/media/video/cx18/cx18-streams.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
-rw-r--r--drivers/media/video/cx18/cx18-streams.c72
1 files changed, 61 insertions, 11 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 987a9308d938..054450f65a60 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -319,11 +319,27 @@ void cx18_streams_cleanup(struct cx18 *cx, int unregister)
/* Teardown all streams */
for (type = 0; type < CX18_MAX_STREAMS; type++) {
- if (cx->streams[type].dvb.enabled) {
- cx18_dvb_unregister(&cx->streams[type]);
- cx->streams[type].dvb.enabled = false;
+
+ /* No struct video_device, but can have buffers allocated */
+ if (type == CX18_ENC_STREAM_TYPE_TS) {
+ if (cx->streams[type].dvb.enabled) {
+ cx18_dvb_unregister(&cx->streams[type]);
+ cx->streams[type].dvb.enabled = false;
+ cx18_stream_free(&cx->streams[type]);
+ }
+ continue;
+ }
+
+ /* No struct video_device, but can have buffers allocated */
+ if (type == CX18_ENC_STREAM_TYPE_IDX) {
+ if (cx->stream_buffers[type] != 0) {
+ cx->stream_buffers[type] = 0;
+ cx18_stream_free(&cx->streams[type]);
+ }
+ continue;
}
+ /* If struct video_device exists, can have buffers allocated */
vdev = cx->streams[type].video_dev;
cx->streams[type].video_dev = NULL;
@@ -447,6 +463,32 @@ static void cx18_vbi_setup(struct cx18_stream *s)
cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data);
}
+void cx18_stream_rotate_idx_mdls(struct cx18 *cx)
+{
+ struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ struct cx18_mdl *mdl;
+
+ if (!cx18_stream_enabled(s))
+ return;
+
+ /* Return if the firmware is not running low on MDLs */
+ if ((atomic_read(&s->q_free.depth) + atomic_read(&s->q_busy.depth)) >=
+ CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN)
+ return;
+
+ /* Return if there are no MDLs to rotate back to the firmware */
+ if (atomic_read(&s->q_full.depth) < 2)
+ return;
+
+ /*
+ * Take the oldest IDX MDL still holding data, and discard its index
+ * entries by scheduling the MDL to go back to the firmware
+ */
+ mdl = cx18_dequeue(s, &s->q_full);
+ if (mdl != NULL)
+ cx18_enqueue(s, mdl, &s->q_free);
+}
+
static
struct cx18_queue *_cx18_stream_put_mdl_fw(struct cx18_stream *s,
struct cx18_mdl *mdl)
@@ -546,8 +588,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
struct cx18 *cx = s->cx;
int captype = 0;
struct cx18_api_func_private priv;
+ struct cx18_stream *s_idx;
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
return -EINVAL;
CX18_DEBUG_INFO("Start encoder stream %s\n", s->name);
@@ -561,6 +604,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
cx->search_pack_header = 0;
break;
+ case CX18_ENC_STREAM_TYPE_IDX:
+ captype = CAPTURE_CHANNEL_TYPE_INDEX;
+ break;
case CX18_ENC_STREAM_TYPE_TS:
captype = CAPTURE_CHANNEL_TYPE_TS;
break;
@@ -635,11 +681,13 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
cx18_vbi_setup(s);
/*
- * assign program index info.
- * Mask 7: select I/P/B, Num_req: 400 max
- * FIXME - currently we have this hardcoded as disabled
+ * Select to receive I, P, and B frame index entries, if the
+ * index stream is enabled. Otherwise disable index entry
+ * generation.
*/
- cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 1, 0);
+ s_idx = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 2,
+ s->handle, cx18_stream_enabled(s_idx) ? 7 : 0);
/* Call out to the common CX2341x API setup for user controls */
priv.cx = cx;
@@ -697,6 +745,7 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
atomic_inc(&cx->tot_capturing);
return 0;
}
+EXPORT_SYMBOL(cx18_start_v4l2_encode_stream);
void cx18_stop_all_captures(struct cx18 *cx)
{
@@ -705,7 +754,7 @@ void cx18_stop_all_captures(struct cx18 *cx)
for (i = CX18_MAX_STREAMS - 1; i >= 0; i--) {
struct cx18_stream *s = &cx->streams[i];
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
continue;
if (test_bit(CX18_F_S_STREAMING, &s->s_flags))
cx18_stop_v4l2_encode_stream(s, 0);
@@ -717,7 +766,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end)
struct cx18 *cx = s->cx;
unsigned long then;
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
return -EINVAL;
/* This function assumes that you are allowed to stop the capture
@@ -762,6 +811,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end)
return 0;
}
+EXPORT_SYMBOL(cx18_stop_v4l2_encode_stream);
u32 cx18_find_handle(struct cx18 *cx)
{
@@ -789,7 +839,7 @@ struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle)
s = &cx->streams[i];
if (s->handle != handle)
continue;
- if (s->video_dev || s->dvb.enabled)
+ if (cx18_stream_enabled(s))
return s;
}
return NULL;