1 /* 2 * cx18 init/start/stop/exit stream functions 3 * 4 * Derived from ivtv-streams.h 5 * 6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> 7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 22 * 02111-1307 USA 23 */ 24 25 u32 cx18_find_handle(struct cx18 *cx); 26 struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle); 27 int cx18_streams_setup(struct cx18 *cx); 28 int cx18_streams_register(struct cx18 *cx); 29 void cx18_streams_cleanup(struct cx18 *cx, int unregister); 30 31 #define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3) 32 void cx18_stream_rotate_idx_mdls(struct cx18 *cx); 33 34 static inline bool cx18_stream_enabled(struct cx18_stream *s) 35 { 36 return s->video_dev || 37 (s->dvb && s->dvb->enabled) || 38 (s->type == CX18_ENC_STREAM_TYPE_IDX && 39 s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0); 40 } 41 42 /* Related to submission of mdls to firmware */ 43 static inline void cx18_stream_load_fw_queue(struct cx18_stream *s) 44 { 45 schedule_work(&s->out_work_order); 46 } 47 48 static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s, 49 struct cx18_mdl *mdl) 50 { 51 /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */ 52 cx18_enqueue(s, mdl, &s->q_free); 53 cx18_stream_load_fw_queue(s); 54 } 55 56 void cx18_out_work_handler(struct work_struct *work); 57 58 /* Capture related */ 59 int cx18_start_v4l2_encode_stream(struct cx18_stream *s); 60 int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end); 61 62 void cx18_stop_all_captures(struct cx18 *cx); 63