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