mirror of https://gitee.com/openkylin/linux.git
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
|
|
* cx18 init/start/stop/exit stream functions
|
|
*
|
|
* Derived from ivtv-streams.h
|
|
*
|
|
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
|
|
* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
u32 cx18_find_handle(struct cx18 *cx);
|
|
struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
|
|
int cx18_streams_setup(struct cx18 *cx);
|
|
int cx18_streams_register(struct cx18 *cx);
|
|
void cx18_streams_cleanup(struct cx18 *cx, int unregister);
|
|
|
|
#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
|
|
void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
|
|
|
|
static inline bool cx18_stream_enabled(struct cx18_stream *s)
|
|
{
|
|
return s->video_dev.v4l2_dev ||
|
|
(s->dvb && s->dvb->enabled) ||
|
|
(s->type == CX18_ENC_STREAM_TYPE_IDX &&
|
|
s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
|
|
}
|
|
|
|
/* Related to submission of mdls to firmware */
|
|
static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
|
|
{
|
|
schedule_work(&s->out_work_order);
|
|
}
|
|
|
|
static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
|
|
struct cx18_mdl *mdl)
|
|
{
|
|
/* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
|
|
cx18_enqueue(s, mdl, &s->q_free);
|
|
cx18_stream_load_fw_queue(s);
|
|
}
|
|
|
|
void cx18_out_work_handler(struct work_struct *work);
|
|
|
|
/* Capture related */
|
|
int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
|
|
int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
|
|
|
|
void cx18_stop_all_captures(struct cx18 *cx);
|