LXR linux/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
  25struct dvb_frontend;
  26
  27struct cx24113_config {
  28        u8 i2c_addr; /* 0x14 or 0x54 */
  29
  30        u32 xtal_khz;
  31};
  32
  33#if IS_REACHABLE(CONFIG_DVB_TUNER_CX24113)
  34extern struct dvb_frontend *cx24113_attach(struct dvb_frontend *,
  35        const struct cx24113_config *config, struct i2c_adapter *i2c);
  36
  37extern void cx24113_agc_callback(struct dvb_frontend *fe);
  38#else
  39static 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
  46static 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 */
  53