drivers/media/dvb-frontends/cx24113.h

   1 /*
   2  *  Driver for Conexant CX24113/CX24128 Tuner (Satellite)
   3  *
   4  *  Copyright (C) 2007-8 Patrick Boettcher <pb@linuxtv.org>
   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 #ifndef CX24113_H
  23 #define CX24113_H
  24
  25 struct dvb_frontend;
  26
  27 struct cx24113_config {
  28         u8 i2c_addr; /* 0x14 or 0x54 */
  29
  30         u32 xtal_khz;
  31 };
  32
  33 #if IS_REACHABLE(CONFIG_DVB_TUNER_CX24113)
  34 extern struct dvb_frontend *cx24113_attach(struct dvb_frontend *,
  35         const struct cx24113_config *config, struct i2c_adapter *i2c);
  36
  37 extern void cx24113_agc_callback(struct dvb_frontend *fe);
  38 #else
  39 static inline struct dvb_frontend *cx24113_attach(struct dvb_frontend *fe,
  40         const struct cx24113_config *config, struct i2c_adapter *i2c)
  41 {
  42         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  43         return NULL;
  44 }
  45
  46 static inline void cx24113_agc_callback(struct dvb_frontend *fe)
  47 {
  48         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  49 }
  50 #endif
  51
  52 #endif /* CX24113_H */