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Linux/include/media/videobuf2-dvb.h

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  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         /* video-buf-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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