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/drivers/media/video/cx18/cx18-streams.h

https://gitlab.com/TeamCarbonXtreme/android_kernel_samsung_msm7x27
C Header | 62 lines | 28 code | 8 blank | 26 comment | 3 complexity | 5fb1027bcdf797958f70c06821be2f0b MD5 | raw file
 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
25u32 cx18_find_handle(struct cx18 *cx);
26struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
27int cx18_streams_setup(struct cx18 *cx);
28int cx18_streams_register(struct cx18 *cx);
29void cx18_streams_cleanup(struct cx18 *cx, int unregister);
30
31#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
32void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
33
34static inline bool cx18_stream_enabled(struct cx18_stream *s)
35{
36	return s->video_dev || s->dvb.enabled ||
37	       (s->type == CX18_ENC_STREAM_TYPE_IDX &&
38		s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
39}
40
41/* Related to submission of mdls to firmware */
42static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
43{
44	struct cx18 *cx = s->cx;
45	queue_work(cx->out_work_queue, &s->out_work_order);
46}
47
48static 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
56void cx18_out_work_handler(struct work_struct *work);
57
58/* Capture related */
59int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
60int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
61
62void cx18_stop_all_captures(struct cx18 *cx);