drivers/media/dvb/frontends/s921_module.h

   1 /*
   2  *  Driver for DVB-T s921 demodulator
   3  *
   4  *  Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.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  *
  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 S921_MODULE_H
  23 #define S921_MODULE_H
  24
  25 #include <linux/dvb/frontend.h>
  26 #include "s921_core.h"
  27
  28 int s921_isdb_init(struct s921_isdb_t *dev);
  29 int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
  30
  31 struct s921_config
  32 {
  33         /* demodulator's I2C address */
  34         u8 i2c_address;
  35 };
  36
  37 #if defined(CONFIG_DVB_S921) || (defined(CONFIG_DVB_S921_MODULE) && defined(MODULE))
  38 extern struct dvb_frontend* s921_attach(const struct s921_config *config,
  39                                            struct i2c_adapter *i2c);
  40 #else
  41 static inline struct dvb_frontend* s921_attach(const struct s921_config *config,
  42                                            struct i2c_adapter *i2c)
  43 {
  44         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  45         return NULL;
  46 }
  47 #endif /* CONFIG_DVB_S921 */
  48
  49 #endif /* S921_H */