diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.c | 72 |
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; |