Linux Kernel  3.7.1
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cx18-streams.h
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1 /*
2  * cx18 init/start/stop/exit stream functions
3  *
4  * Derived from ivtv-streams.h
5  *
6  * Copyright (C) 2007 Hans Verkuil <[email protected]>
7  * Copyright (C) 2008 Andy Walls <[email protected]>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22  * 02111-1307 USA
23  */
24 
25 u32 cx18_find_handle(struct cx18 *cx);
27 int cx18_streams_setup(struct cx18 *cx);
28 int cx18_streams_register(struct cx18 *cx);
29 void cx18_streams_cleanup(struct cx18 *cx, int unregister);
30 
31 #define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
32 void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
33 
34 static inline bool cx18_stream_enabled(struct cx18_stream *s)
35 {
36  return s->video_dev ||
37  (s->dvb && s->dvb->enabled) ||
39  s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
40 }
41 
42 /* Related to submission of mdls to firmware */
43 static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
44 {
46 }
47 
48 static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
49  struct cx18_mdl *mdl)
50 {
51  /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
52  cx18_enqueue(s, mdl, &s->q_free);
53  cx18_stream_load_fw_queue(s);
54 }
55 
57 
58 /* Capture related */
60 int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
61 
62 void cx18_stop_all_captures(struct cx18 *cx);