1 /* 2 * Sharp s921 driver 3 * 4 * Copyright (C) 2009 Mauro Carvalho Chehab 5 * Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation version 2. 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 GNU 14 * General Public License for more details. 15 */ 16 17 #ifndef S921_H 18 #define S921_H 19 20 #include <linux/dvb/frontend.h> 21 22 struct s921_config { 23 /* the demodulator's i2c address */ 24 u8 demod_address; 25 }; 26 27 #if IS_REACHABLE(CONFIG_DVB_S921) 28 extern struct dvb_frontend *s921_attach(const struct s921_config *config, 29 struct i2c_adapter *i2c); 30 extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *); 31 #else 32 static inline struct dvb_frontend *s921_attach( 33 const struct s921_config *config, struct i2c_adapter *i2c) 34 { 35 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 36 return NULL; 37 } 38 static inline struct i2c_adapter * 39 s921_get_tuner_i2c_adapter(struct dvb_frontend *fe) 40 { 41 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 42 return NULL; 43 } 44 #endif 45 46 #endif /* S921_H */ 47