xref: /openbmc/linux/include/media/videobuf2-dvb.h (revision 2c684d89)
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 
10 #include <media/videobuf2-v4l2.h>
11 /*
12  * TODO: This header file should be replaced with videobuf2-core.h
13  * Currently, vb2_thread is not a stuff of videobuf2-core,
14  * since vb2_thread has many dependencies on videobuf2-v4l2.
15  */
16 
17 struct vb2_dvb {
18 	/* filling that the job of the driver */
19 	char			*name;
20 	struct dvb_frontend	*frontend;
21 	struct vb2_queue	dvbq;
22 
23 	/* video-buf-dvb state info */
24 	struct mutex		lock;
25 	int			nfeeds;
26 
27 	/* vb2_dvb_(un)register manages this */
28 	struct dvb_demux	demux;
29 	struct dmxdev		dmxdev;
30 	struct dmx_frontend	fe_hw;
31 	struct dmx_frontend	fe_mem;
32 	struct dvb_net		net;
33 };
34 
35 struct vb2_dvb_frontend {
36 	struct list_head felist;
37 	int id;
38 	struct vb2_dvb dvb;
39 };
40 
41 struct vb2_dvb_frontends {
42 	struct list_head felist;
43 	struct mutex lock;
44 	struct dvb_adapter adapter;
45 	int active_fe_id; /* Indicates which frontend in the felist is in use */
46 	int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
47 };
48 
49 int vb2_dvb_register_bus(struct vb2_dvb_frontends *f,
50 			 struct module *module,
51 			 void *adapter_priv,
52 			 struct device *device,
53 			 short *adapter_nr,
54 			 int mfe_shared);
55 
56 void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
57 
58 struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
59 void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
60 
61 struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
62 int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
63 
64 #endif			/* _VIDEOBUF2_DVB_H_ */
65