Merge commit 'v2.6.34-rc1' into for-linus

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;