1 /*
2 * cx18 init/start/stop/exit stream functions
3 *
4 * Derived from ivtv-streams.h
5 *
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
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);
26 struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
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
cx18_stream_enabled(struct cx18_stream * s)34 static inline bool cx18_stream_enabled(struct cx18_stream *s)
35 {
36 return s->video_dev ||
37 (s->dvb && s->dvb->enabled) ||
38 (s->type == CX18_ENC_STREAM_TYPE_IDX &&
39 s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
40 }
41
42 /* Related to submission of mdls to firmware */
cx18_stream_load_fw_queue(struct cx18_stream * s)43 static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
44 {
45 schedule_work(&s->out_work_order);
46 }
47
cx18_stream_put_mdl_fw(struct cx18_stream * s,struct cx18_mdl * mdl)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
56 void cx18_out_work_handler(struct work_struct *work);
57
58 /* Capture related */
59 int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
60 int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
61
62 void cx18_stop_all_captures(struct cx18 *cx);
63