1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _VIDEOBUF2_DVB_H_
3#define	_VIDEOBUF2_DVB_H_
4
5#include <media/dvbdev.h>
6#include <media/dmxdev.h>
7#include <media/dvb_demux.h>
8#include <media/dvb_net.h>
9#include <media/dvb_frontend.h>
10#include <media/videobuf2-v4l2.h>
11
12/* We don't actually need to include media-device.h here */
13struct media_device;
14
15/*
16 * TODO: This header file should be replaced with videobuf2-core.h
17 * Currently, vb2_thread is not a stuff of videobuf2-core,
18 * since vb2_thread has many dependencies on videobuf2-v4l2.
19 */
20
21struct vb2_dvb {
22	/* filling that the job of the driver */
23	char			*name;
24	struct dvb_frontend	*frontend;
25	struct vb2_queue	dvbq;
26
27	/* vb2-dvb state info */
28	struct mutex		lock;
29	int			nfeeds;
30
31	/* vb2_dvb_(un)register manages this */
32	struct dvb_demux	demux;
33	struct dmxdev		dmxdev;
34	struct dmx_frontend	fe_hw;
35	struct dmx_frontend	fe_mem;
36	struct dvb_net		net;
37};
38
39struct vb2_dvb_frontend {
40	struct list_head felist;
41	int id;
42	struct vb2_dvb dvb;
43};
44
45struct vb2_dvb_frontends {
46	struct list_head felist;
47	struct mutex lock;
48	struct dvb_adapter adapter;
49	int active_fe_id; /* Indicates which frontend in the felist is in use */
50	int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
51};
52
53int vb2_dvb_register_bus(struct vb2_dvb_frontends *f,
54			 struct module *module,
55			 void *adapter_priv,
56			 struct device *device,
57			 struct media_device *mdev,
58			 short *adapter_nr,
59			 int mfe_shared);
60
61void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
62
63struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
64void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
65
66struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
67int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
68
69#endif			/* _VIDEOBUF2_DVB_H_ */
70