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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * cx18 init/start/stop/exit stream functions4 *5 * Derived from ivtv-streams.h6 *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