drivers/media/dvb-frontends/tda826x.h

   1   /*
   2      Driver for Philips tda8262/tda8263 DVBS Silicon tuners
   3
   4      (c) 2006 Andrew de Quincey
   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
  23 #ifndef __DVB_TDA826X_H__
  24 #define __DVB_TDA826X_H__
  25
  26 #include <linux/i2c.h>
  27 #include "dvb_frontend.h"
  28
  29 /**
  30  * Attach a tda826x tuner to the supplied frontend structure.
  31  *
  32  * @param fe Frontend to attach to.
  33  * @param addr i2c address of the tuner.
  34  * @param i2c i2c adapter to use.
  35  * @param has_loopthrough Set to 1 if the card has a loopthrough RF connector.
  36  * @return FE pointer on success, NULL on failure.
  37  */
  38 #if IS_REACHABLE(CONFIG_DVB_TDA826X)
  39 extern struct dvb_frontend* tda826x_attach(struct dvb_frontend *fe, int addr,
  40                                            struct i2c_adapter *i2c,
  41                                            int has_loopthrough);
  42 #else
  43 static inline struct dvb_frontend* tda826x_attach(struct dvb_frontend *fe,
  44                                                   int addr,
  45                                                   struct i2c_adapter *i2c,
  46                                                   int has_loopthrough)
  47 {
  48         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  49         return NULL;
  50 }
  51 #endif // CONFIG_DVB_TDA826X
  52
  53 #endif // __DVB_TDA826X_H__