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 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 */ 19 20 #ifndef DVB_IX2505V_H 21 #define DVB_IX2505V_H 22 23 #include <linux/i2c.h> 24 #include "dvb_frontend.h" 25 26 /** 27 * Attach a ix2505v tuner to the supplied frontend structure. 28 * 29 * @param fe Frontend to attach to. 30 * @param config ix2505v_config structure 31 * @return FE pointer on success, NULL on failure. 32 */ 33 34 struct ix2505v_config { 35 u8 tuner_address; 36 37 /*Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB */ 38 u8 tuner_gain; 39 40 /*Charge pump output +/- 0=120 1=260 2=555 3=1200(default) */ 41 u8 tuner_chargepump; 42 43 /* delay after tune */ 44 int min_delay_ms; 45 46 /* disables reads*/ 47 u8 tuner_write_only; 48 49 }; 50 51 #if IS_REACHABLE(CONFIG_DVB_IX2505V) 52 extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 53 const struct ix2505v_config *config, struct i2c_adapter *i2c); 54 #else 55 static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 56 const struct ix2505v_config *config, struct i2c_adapter *i2c) 57 { 58 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 59 return NULL; 60 } 61 #endif 62 63 #endif /* DVB_IX2505V_H */ 64