drivers/media/dvb-frontends/cx22702.h

   1 /*
   2     Conexant 22702 DVB OFDM demodulator driver
   3
   4     based on:
   5         Alps TDMB7 DVB OFDM demodulator driver
   6
   7     Copyright (C) 2001-2002 Convergence Integrated Media GmbH
   8           Holger Waechtler <holger@convergence.de>
   9
  10     Copyright (C) 2004 Steven Toth <stoth@linuxtv.org>
  11
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; either version 2 of the License, or
  15     (at your option) any later version.
  16
  17     This program is distributed in the hope that it will be useful,
  18     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20     GNU General Public License for more details.
  21
  22     You should have received a copy of the GNU General Public License
  23     along with this program; if not, write to the Free Software
  24     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25
  26 */
  27
  28 #ifndef CX22702_H
  29 #define CX22702_H
  30
  31 #include <linux/kconfig.h>
  32 #include <linux/dvb/frontend.h>
  33
  34 struct cx22702_config {
  35         /* the demodulator's i2c address */
  36         u8 demod_address;
  37
  38         /* serial/parallel output */
  39 #define CX22702_PARALLEL_OUTPUT 0
  40 #define CX22702_SERIAL_OUTPUT   1
  41         u8 output_mode;
  42 };
  43
  44 #if IS_REACHABLE(CONFIG_DVB_CX22702)
  45 extern struct dvb_frontend *cx22702_attach(
  46         const struct cx22702_config *config,
  47         struct i2c_adapter *i2c);
  48 #else
  49 static inline struct dvb_frontend *cx22702_attach(
  50         const struct cx22702_config *config,
  51         struct i2c_adapter *i2c)
  52 {
  53         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  54         return NULL;
  55 }
  56 #endif
  57
  58 #endif