mirror of https://gitee.com/openkylin/linux.git
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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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 || 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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struct cx18 *cx = s->cx;
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queue_work(cx->out_work_queue, &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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