1 /* 2 Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver 3 4 Copyright (C) 2005 Steven Toth <stoth@linuxtv.org> 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 CX24123_H 22 #define CX24123_H 23 24 #include <linux/dvb/frontend.h> 25 26 struct cx24123_config { 27 /* the demodulator's i2c address */ 28 u8 demod_address; 29 30 /* Need to set device param for start_dma */ 31 int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured); 32 33 /* 0 = LNB voltage normal, 1 = LNB voltage inverted */ 34 int lnb_polarity; 35 36 /* this device has another tuner */ 37 u8 dont_use_pll; 38 void (*agc_callback) (struct dvb_frontend *); 39 }; 40 41 #if IS_REACHABLE(CONFIG_DVB_CX24123) 42 extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config, 43 struct i2c_adapter *i2c); 44 extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *); 45 #else 46 static inline struct dvb_frontend *cx24123_attach( 47 const struct cx24123_config *config, struct i2c_adapter *i2c) 48 { 49 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 50 return NULL; 51 } 52 static inline struct i2c_adapter * 53 cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe) 54 { 55 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 56 return NULL; 57 } 58 #endif 59 60 #endif /* CX24123_H */ 61