drivers/media/dvb-frontends/stv0297.h

   1 /*
   2     Driver for STV0297 demodulator
   3
   4     Copyright (C) 2003-2004 Dennis Noermann <dennis.noermann@noernet.de>
   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     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #ifndef STV0297_H
  22 #define STV0297_H
  23
  24 #include <linux/dvb/frontend.h>
  25 #include <media/dvb_frontend.h>
  26
  27 struct stv0297_config
  28 {
  29         /* the demodulator's i2c address */
  30         u8 demod_address;
  31
  32         /* inittab - array of pairs of values.
  33         * First of each pair is the register, second is the value.
  34         * List should be terminated with an 0xff, 0xff pair.
  35         */
  36         u8* inittab;
  37
  38         /* does the "inversion" need inverted? */
  39         u8 invert:1;
  40
  41         /* set to 1 if the device requires an i2c STOP during reading */
  42         u8 stop_during_read:1;
  43 };
  44
  45 #if IS_REACHABLE(CONFIG_DVB_STV0297)
  46 extern struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
  47                                            struct i2c_adapter* i2c);
  48 #else
  49 static inline struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
  50                                            struct i2c_adapter* i2c)
  51 {
  52         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  53         return NULL;
  54 }
  55 #endif // CONFIG_DVB_STV0297
  56
  57 #endif // STV0297_H