1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *  cx18 file operation functions
4  *
5  *  Derived from ivtv-fileops.h
6  *
7  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
8  */
9 
10 /* Testing/Debugging */
11 int cx18_v4l2_open(struct file *filp);
12 ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,
13 		      loff_t *pos);
14 ssize_t cx18_v4l2_write(struct file *filp, const char __user *buf, size_t count,
15 		       loff_t *pos);
16 int cx18_v4l2_close(struct file *filp);
17 __poll_t cx18_v4l2_enc_poll(struct file *filp, poll_table *wait);
18 int cx18_start_capture(struct cx18_open_id *id);
19 void cx18_stop_capture(struct cx18_stream *s, int gop_end);
20 void cx18_mute(struct cx18 *cx);
21 void cx18_unmute(struct cx18 *cx);
22 int cx18_v4l2_mmap(struct file *file, struct vm_area_struct *vma);
23 void cx18_clear_queue(struct cx18_stream *s, enum vb2_buffer_state state);
24 void cx18_vb_timeout(struct timer_list *t);
25 
26 /* Shared with cx18-alsa module */
27 int cx18_claim_stream(struct cx18_open_id *id, int type);
28 void cx18_release_stream(struct cx18_stream *s);
29