LXR linux/drivers/media/dvb-frontends/s921.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *   Sharp s921 driver
   4 *
   5 *   Copyright (C) 2009 Mauro Carvalho Chehab
   6 *   Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com>
   7 */
   8
   9#ifndef S921_H
  10#define S921_H
  11
  12#include <linux/dvb/frontend.h>
  13
  14struct s921_config {
  15        /* the demodulator's i2c address */
  16        u8 demod_address;
  17};
  18
  19#if IS_REACHABLE(CONFIG_DVB_S921)
  20extern struct dvb_frontend *s921_attach(const struct s921_config *config,
  21                                           struct i2c_adapter *i2c);
  22extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *);
  23#else
  24static inline struct dvb_frontend *s921_attach(
  25        const struct s921_config *config, struct i2c_adapter *i2c)
  26{
  27        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  28        return NULL;
  29}
  30static inline struct i2c_adapter *
  31        s921_get_tuner_i2c_adapter(struct dvb_frontend *fe)
  32{
  33        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  34        return NULL;
  35}
  36#endif
  37
  38#endif /* S921_H */
  39