| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | |
| 20 | u32 cx18_find_handle(struct cx18 *cx); |
| 21 | struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle); |
| 22 | int cx18_streams_setup(struct cx18 *cx); |
| 23 | int cx18_streams_register(struct cx18 *cx); |
| 24 | void cx18_streams_cleanup(struct cx18 *cx, int unregister); |
| 25 | |
| 26 | #define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3) |
| 27 | void cx18_stream_rotate_idx_mdls(struct cx18 *cx); |
| 28 | |
| 29 | static inline bool cx18_stream_enabled(struct cx18_stream *s) |
| 30 | { |
| 31 | return s->video_dev.v4l2_dev || |
| 32 | (s->dvb && s->dvb->enabled) || |
| 33 | (s->type == CX18_ENC_STREAM_TYPE_IDX && |
| 34 | s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0); |
| 35 | } |
| 36 | |
| 37 | /* Related to submission of mdls to firmware */ |
| 38 | static inline void cx18_stream_load_fw_queue(struct cx18_stream *s) |
| 39 | { |
| 40 | schedule_work(&s->out_work_order); |
| 41 | } |
| 42 | |
| 43 | static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s, |
| 44 | struct cx18_mdl *mdl) |
| 45 | { |
| 46 | /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */ |
| 47 | cx18_enqueue(s, mdl, &s->q_free); |
| 48 | cx18_stream_load_fw_queue(s); |
| 49 | } |
| 50 | |
| 51 | void cx18_out_work_handler(struct work_struct *work); |
| 52 | |
| 53 | /* Capture related */ |
| 54 | int cx18_start_v4l2_encode_stream(struct cx18_stream *s); |
| 55 | int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end); |
| 56 | |
| 57 | void cx18_stop_all_captures(struct cx18 *cx); |