LXR linux/drivers/media/dvb-frontends/stb6000.h

   1  /*
   2     Driver for ST stb6000 DVBS Silicon tuner
   3
   4     Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14
  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
  23#ifndef __DVB_STB6000_H__
  24#define __DVB_STB6000_H__
  25
  26#include <linux/kconfig.h>
  27#include <linux/i2c.h>
  28#include "dvb_frontend.h"
  29
  30/**
  31 * Attach a stb6000 tuner to the supplied frontend structure.
  32 *
  33 * @param fe Frontend to attach to.
  34 * @param addr i2c address of the tuner.
  35 * @param i2c i2c adapter to use.
  36 * @return FE pointer on success, NULL on failure.
  37 */
  38#if IS_ENABLED(CONFIG_DVB_STB6000)
  39extern struct dvb_frontend *stb6000_attach(struct dvb_frontend *fe, int addr,
  40                                           struct i2c_adapter *i2c);
  41#else
  42static inline struct dvb_frontend *stb6000_attach(struct dvb_frontend *fe,
  43                                                  int addr,
  44                                                  struct i2c_adapter *i2c)
  45{
  46        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  47        return NULL;
  48}
  49#endif /* CONFIG_DVB_STB6000 */
  50
  51#endif /* __DVB_STB6000_H__ */
  52