LXR linux/drivers/media/dvb-frontends/stv0297.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3    Driver for STV0297 demodulator
   4
   5    Copyright (C) 2003-2004 Dennis Noermann <dennis.noermann@noernet.de>
   6
   7*/
   8
   9#ifndef STV0297_H
  10#define STV0297_H
  11
  12#include <linux/dvb/frontend.h>
  13#include <media/dvb_frontend.h>
  14
  15struct stv0297_config
  16{
  17        /* the demodulator's i2c address */
  18        u8 demod_address;
  19
  20        /* inittab - array of pairs of values.
  21        * First of each pair is the register, second is the value.
  22        * List should be terminated with an 0xff, 0xff pair.
  23        */
  24        u8* inittab;
  25
  26        /* does the "inversion" need inverted? */
  27        u8 invert:1;
  28
  29        /* set to 1 if the device requires an i2c STOP during reading */
  30        u8 stop_during_read:1;
  31};
  32
  33#if IS_REACHABLE(CONFIG_DVB_STV0297)
  34extern struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
  35                                           struct i2c_adapter* i2c);
  36#else
  37static inline struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
  38                                           struct i2c_adapter* i2c)
  39{
  40        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  41        return NULL;
  42}
  43#endif // CONFIG_DVB_STV0297
  44
  45#endif // STV0297_H
  46