drivers/media/dvb-frontends/nxt6000.h

   1 /*
   2         NxtWave Communications - NXT6000 demodulator driver
   3
   4     Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
   5     Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>
   6
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     This program is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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 NXT6000_H
  23 #define NXT6000_H
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 struct nxt6000_config
  28 {
  29         /* the demodulator's i2c address */
  30         u8 demod_address;
  31
  32         /* should clock inversion be used? */
  33         u8 clock_inversion:1;
  34 };
  35
  36 #if IS_REACHABLE(CONFIG_DVB_NXT6000)
  37 extern struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
  38                                            struct i2c_adapter* i2c);
  39 #else
  40 static inline struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
  41                                            struct i2c_adapter* i2c)
  42 {
  43         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  44         return NULL;
  45 }
  46 #endif // CONFIG_DVB_NXT6000
  47
  48 #endif // NXT6000_H