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 */
13 struct 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
21 struct 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
39 struct vb2_dvb_frontend {
40 struct list_head felist;
41 int id;
42 struct vb2_dvb dvb;
43 };
44
45 struct 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
53 int 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
61 void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
62
63 struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
64 void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
65
66 struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
67 int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
68
69 #endif /* _VIDEOBUF2_DVB_H_ */
70
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