include/media/videobuf2-dvb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _VIDEOBUF2_DVB_H_
   3 #define _VIDEOBUF2_DVB_H_
   4
   5 #include <dvbdev.h>
   6 #include <dmxdev.h>
   7 #include <dvb_demux.h>
   8 #include <dvb_net.h>
   9 #include <dvb_frontend.h>
  10
  11 #include <media/videobuf2-v4l2.h>
  12
  13 /* We don't actually need to include media-device.h here */
  14 struct media_device;
  15
  16 /*
  17  * TODO: This header file should be replaced with videobuf2-core.h
  18  * Currently, vb2_thread is not a stuff of videobuf2-core,
  19  * since vb2_thread has many dependencies on videobuf2-v4l2.
  20  */
  21
  22 struct vb2_dvb {
  23         /* filling that the job of the driver */
  24         char                    *name;
  25         struct dvb_frontend     *frontend;
  26         struct vb2_queue        dvbq;
  27
  28         /* video-buf-dvb state info */
  29         struct mutex            lock;
  30         int                     nfeeds;
  31
  32         /* vb2_dvb_(un)register manages this */
  33         struct dvb_demux        demux;
  34         struct dmxdev           dmxdev;
  35         struct dmx_frontend     fe_hw;
  36         struct dmx_frontend     fe_mem;
  37         struct dvb_net          net;
  38 };
  39
  40 struct vb2_dvb_frontend {
  41         struct list_head felist;
  42         int id;
  43         struct vb2_dvb dvb;
  44 };
  45
  46 struct vb2_dvb_frontends {
  47         struct list_head felist;
  48         struct mutex lock;
  49         struct dvb_adapter adapter;
  50         int active_fe_id; /* Indicates which frontend in the felist is in use */
  51         int gate; /* Frontend with gate control 0=!MFE,1=fe0,2=fe1 etc */
  52 };
  53
  54 int vb2_dvb_register_bus(struct vb2_dvb_frontends *f,
  55                          struct module *module,
  56                          void *adapter_priv,
  57                          struct device *device,
  58                          struct media_device *mdev,
  59                          short *adapter_nr,
  60                          int mfe_shared);
  61
  62 void vb2_dvb_unregister_bus(struct vb2_dvb_frontends *f);
  63
  64 struct vb2_dvb_frontend *vb2_dvb_alloc_frontend(struct vb2_dvb_frontends *f, int id);
  65 void vb2_dvb_dealloc_frontends(struct vb2_dvb_frontends *f);
  66
  67 struct vb2_dvb_frontend *vb2_dvb_get_frontend(struct vb2_dvb_frontends *f, int id);
  68 int vb2_dvb_find_frontend(struct vb2_dvb_frontends *f, struct dvb_frontend *p);
  69
  70 #endif                  /* _VIDEOBUF2_DVB_H_ */