root/include/media/videobuf2-dvb.h

INCLUDED FROM

   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_ */