xref: /linux/include/media/videobuf2-dvb.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 #ifndef _VIDEOBUF2_DVB_H_
2 #define	_VIDEOBUF2_DVB_H_
3 
4 #include <dvbdev.h>
5 #include <dmxdev.h>
6 #include <dvb_demux.h>
7 #include <dvb_net.h>
8 #include <dvb_frontend.h>
9 #include <media/videobuf2-core.h>
10 
11 struct vb2_dvb {
12 	/* filling that the job of the driver */
13 	char			*name;
14 	struct dvb_frontend	*frontend;
15 	struct vb2_queue	dvbq;
16 
17 	/* video-buf-dvb state info */
18 	struct mutex		lock;
19 	int			nfeeds;
20 
21 	/* vb2_dvb_(un)register manages this */
22 	struct dvb_demux	demux;
23 	struct dmxdev		dmxdev;
24 	struct dmx_frontend	fe_hw;
25 	struct dmx_frontend	fe_mem;
26 	struct dvb_net		net;
27 };
28 
29 struct vb2_dvb_frontend {
30 	struct list_head felist;
31 	int id;
32 	struct vb2_dvb dvb;
33 };
34 
35 struct vb2_dvb_frontends {
36 	struct list_head felist;
37 	struct mutex lock;
38 	struct dvb_adapter adapter;
39 	int active_fe_id; /* Indicates which frontend in the felist is in use */
40 	int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
41 };
42 
43 int vb2_dvb_register_bus(struct vb2_dvb_frontends *f,
44 			 struct module *module,
45 			 void *adapter_priv,
46 			 struct device *device,
47 			 short *adapter_nr,
48 			 int mfe_shared);
49 
50 void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
51 
52 struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
53 void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
54 
55 struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
56 int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
57 
58 #endif			/* _VIDEOBUF2_DVB_H_ */
59