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 *  You should have received a copy of the GNU General Public License
  18 *  along with this program; if not, write to the Free Software
  19 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22#ifndef QT1010_H
  23#define QT1010_H
  24
  25#include "dvb_frontend.h"
  26
  27struct qt1010_config {
  28        u8 i2c_address;
  29};
  30
  31/**
  32 * Attach a qt1010 tuner to the supplied frontend structure.
  33 *
  34 * @param fe   frontend to attach to
  35 * @param i2c  i2c adapter to use
  36 * @param cfg  tuner hw based configuration
  37 * @return fe  pointer on success, NULL on failure
  38 */
  39#if IS_ENABLED(CONFIG_MEDIA_TUNER_QT1010)
  40extern struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
  41                                          struct i2c_adapter *i2c,
  42                                          struct qt1010_config *cfg);
  43#else
  44static inline struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
  45                                                 struct i2c_adapter *i2c,
  46                                                 struct qt1010_config *cfg)
  47{
  48        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  49        return NULL;
  50}
  51#endif // CONFIG_MEDIA_TUNER_QT1010
  52
  53#endif
  54