LXR linux/drivers/media/tuners/qt1010.h

   1/*
   2 *  Driver for Quantek QT1010 silicon tuner
   3 *
   4 *  Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
   5 *                     Aapo Tahkola <aet@rasterburn.org>
   6 *
   7 *  This program is free software; you can redistribute it and/or modify
   8 *  it under the terms of the GNU General Public License as published by
   9 *  the Free Software Foundation; either version 2 of the License, or
  10 *  (at your option) any later version.
  11 *
  12 *  This program is distributed in the hope that it will be useful,
  13 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 *  GNU General Public License for more details.
  16 */
  17
  18#ifndef QT1010_H
  19#define QT1010_H
  20
  21#include <media/dvb_frontend.h>
  22
  23struct qt1010_config {
  24        u8 i2c_address;
  25};
  26
  27/**
  28 * Attach a qt1010 tuner to the supplied frontend structure.
  29 *
  30 * @param fe   frontend to attach to
  31 * @param i2c  i2c adapter to use
  32 * @param cfg  tuner hw based configuration
  33 * @return fe  pointer on success, NULL on failure
  34 */
  35#if IS_REACHABLE(CONFIG_MEDIA_TUNER_QT1010)
  36extern struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
  37                                          struct i2c_adapter *i2c,
  38                                          struct qt1010_config *cfg);
  39#else
  40static inline struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
  41                                                 struct i2c_adapter *i2c,
  42                                                 struct qt1010_config *cfg)
  43{
  44        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  45        return NULL;
  46}
  47#endif // CONFIG_MEDIA_TUNER_QT1010
  48
  49#endif
  50