drivers/media/dvb-frontends/ec100.h

   1 /*
   2  * E3C EC100 demodulator driver
   3  *
   4  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
   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  *    GNU General Public License for more details.
  15  *
  16  *    You should have received a copy of the GNU General Public License
  17  *    along with this program; if not, write to the Free Software
  18  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  */
  21
  22 #ifndef EC100_H
  23 #define EC100_H
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 struct ec100_config {
  28         /* demodulator's I2C address */
  29         u8 demod_address;
  30 };
  31
  32
  33 #if IS_REACHABLE(CONFIG_DVB_EC100)
  34 extern struct dvb_frontend *ec100_attach(const struct ec100_config *config,
  35         struct i2c_adapter *i2c);
  36 #else
  37 static inline struct dvb_frontend *ec100_attach(
  38         const struct ec100_config *config, struct i2c_adapter *i2c)
  39 {
  40         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  41         return NULL;
  42 }
  43 #endif
  44
  45 #endif /* EC100_H */