drivers/media/dvb-frontends/cx22702.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     Conexant 22702 DVB OFDM demodulator driver
   4
   5     based on:
   6         Alps TDMB7 DVB OFDM demodulator driver
   7
   8     Copyright (C) 2001-2002 Convergence Integrated Media GmbH
   9           Holger Waechtler <holger@convergence.de>
  10
  11     Copyright (C) 2004 Steven Toth <stoth@linuxtv.org>
  12
  13
  14 */
  15
  16 #ifndef CX22702_H
  17 #define CX22702_H
  18
  19 #include <linux/dvb/frontend.h>
  20
  21 struct cx22702_config {
  22         /* the demodulator's i2c address */
  23         u8 demod_address;
  24
  25         /* serial/parallel output */
  26 #define CX22702_PARALLEL_OUTPUT 0
  27 #define CX22702_SERIAL_OUTPUT   1
  28         u8 output_mode;
  29 };
  30
  31 #if IS_REACHABLE(CONFIG_DVB_CX22702)
  32 extern struct dvb_frontend *cx22702_attach(
  33         const struct cx22702_config *config,
  34         struct i2c_adapter *i2c);
  35 #else
  36 static inline struct dvb_frontend *cx22702_attach(
  37         const struct cx22702_config *config,
  38         struct i2c_adapter *i2c)
  39 {
  40         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  41         return NULL;
  42 }
  43 #endif
  44
  45 #endif