1 /** 2 * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner 3 * 4 * Copyright (C) 2010 Malcolm Priestley 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 Version 2, as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #ifndef DVB_IX2505V_H 17 #define DVB_IX2505V_H 18 19 #include <linux/i2c.h> 20 #include "dvb_frontend.h" 21 22 /** 23 * Attach a ix2505v tuner to the supplied frontend structure. 24 * 25 * @param fe Frontend to attach to. 26 * @param config ix2505v_config structure 27 * @return FE pointer on success, NULL on failure. 28 */ 29 30 struct ix2505v_config { 31 u8 tuner_address; 32 33 /*Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB */ 34 u8 tuner_gain; 35 36 /*Charge pump output +/- 0=120 1=260 2=555 3=1200(default) */ 37 u8 tuner_chargepump; 38 39 /* delay after tune */ 40 int min_delay_ms; 41 42 /* disables reads*/ 43 u8 tuner_write_only; 44 45 }; 46 47 #if IS_REACHABLE(CONFIG_DVB_IX2505V) 48 extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 49 const struct ix2505v_config *config, struct i2c_adapter *i2c); 50 #else 51 static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 52 const struct ix2505v_config *config, struct i2c_adapter *i2c) 53 { 54 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 55 return NULL; 56 } 57 #endif 58 59 #endif /* DVB_IX2505V_H */ 60