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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _VIDEOBUF2_DVB_H_
3#define _VIDEOBUF2_DVB_H_
4
5#include <dvbdev.h>
6#include <dmxdev.h>
7#include <dvb_demux.h>
8#include <dvb_net.h>
9#include <dvb_frontend.h>
10
11#include <media/videobuf2-v4l2.h>
12
13/* We don't actually need to include media-device.h here */
14struct media_device;
15
16/*
17 * TODO: This header file should be replaced with videobuf2-core.h
18 * Currently, vb2_thread is not a stuff of videobuf2-core,
19 * since vb2_thread has many dependencies on videobuf2-v4l2.
20 */
21
22struct vb2_dvb {
23 /* filling that the job of the driver */
24 char *name;
25 struct dvb_frontend *frontend;
26 struct vb2_queue dvbq;
27
28 /* video-buf-dvb state info */
29 struct mutex lock;
30 int nfeeds;
31
32 /* vb2_dvb_(un)register manages this */
33 struct dvb_demux demux;
34 struct dmxdev dmxdev;
35 struct dmx_frontend fe_hw;
36 struct dmx_frontend fe_mem;
37 struct dvb_net net;
38};
39
40struct vb2_dvb_frontend {
41 struct list_head felist;
42 int id;
43 struct vb2_dvb dvb;
44};
45
46struct vb2_dvb_frontends {
47 struct list_head felist;
48 struct mutex lock;
49 struct dvb_adapter adapter;
50 int active_fe_id; /* Indicates which frontend in the felist is in use */
51 int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
52};
53
54int vb2_dvb_register_bus(struct vb2_dvb_frontends *f,
55 struct module *module,
56 void *adapter_priv,
57 struct device *device,
58 struct media_device *mdev,
59 short *adapter_nr,
60 int mfe_shared);
61
62void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
63
64struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
65void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
66
67struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
68int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
69
70#endif /* _VIDEOBUF2_DVB_H_ */