1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 *  cx18 init/start/stop/exit stream functions
4 *
5 *  Derived from ivtv-streams.h
6 *
7 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
8 *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
9 */
10
11u32 cx18_find_handle(struct cx18 *cx);
12struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
13int cx18_streams_setup(struct cx18 *cx);
14int cx18_streams_register(struct cx18 *cx);
15void cx18_streams_cleanup(struct cx18 *cx, int unregister);
16
17#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
18void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
19
20static inline bool cx18_stream_enabled(struct cx18_stream *s)
21{
22	return s->video_dev.v4l2_dev ||
23	       (s->dvb && s->dvb->enabled) ||
24	       (s->type == CX18_ENC_STREAM_TYPE_IDX &&
25		s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
26}
27
28/* Related to submission of mdls to firmware */
29static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
30{
31	schedule_work(&s->out_work_order);
32}
33
34static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
35					  struct cx18_mdl *mdl)
36{
37	/* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
38	cx18_enqueue(s, mdl, &s->q_free);
39	cx18_stream_load_fw_queue(s);
40}
41
42void cx18_out_work_handler(struct work_struct *work);
43
44/* Capture related */
45int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
46int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
47
48void cx18_stop_all_captures(struct cx18 *cx);
49