49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* cx18 init/start/stop/exit stream functions
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*
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* Derived from ivtv-streams.h
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*
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* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
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* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
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*/
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u32 cx18_find_handle(struct cx18 *cx);
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struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
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int cx18_streams_setup(struct cx18 *cx);
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int cx18_streams_register(struct cx18 *cx);
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void cx18_streams_cleanup(struct cx18 *cx, int unregister);
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#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
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void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
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static inline bool cx18_stream_enabled(struct cx18_stream *s)
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{
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return s->video_dev.v4l2_dev ||
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(s->dvb && s->dvb->enabled) ||
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(s->type == CX18_ENC_STREAM_TYPE_IDX &&
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s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
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}
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/* Related to submission of mdls to firmware */
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static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
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{
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schedule_work(&s->out_work_order);
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}
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static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
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struct cx18_mdl *mdl)
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{
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/* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
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cx18_enqueue(s, mdl, &s->q_free);
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cx18_stream_load_fw_queue(s);
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}
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void cx18_out_work_handler(struct work_struct *work);
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/* Capture related */
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int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
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int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
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void cx18_stop_all_captures(struct cx18 *cx);
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