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/kconfig.h> 24#include <linux/i2c.h> 25#include "dvb_frontend.h" 26 27/** 28 * Attach a ix2505v tuner to the supplied frontend structure. 29 * 30 * @param fe Frontend to attach to. 31 * @param config ix2505v_config structure 32 * @return FE pointer on success, NULL on failure. 33 */ 34 35struct ix2505v_config { 36 u8 tuner_address; 37 38 /*Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB */ 39 u8 tuner_gain; 40 41 /*Charge pump output +/- 0=120 1=260 2=555 3=1200(default) */ 42 u8 tuner_chargepump; 43 44 /* delay after tune */ 45 int min_delay_ms; 46 47 /* disables reads*/ 48 u8 tuner_write_only; 49 50}; 51 52#if IS_ENABLED(CONFIG_DVB_IX2505V) 53extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 54 const struct ix2505v_config *config, struct i2c_adapter *i2c); 55#else 56static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, 57 const struct ix2505v_config *config, struct i2c_adapter *i2c) 58{ 59 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 60 return NULL; 61} 62#endif 63 64#endif /* DVB_IX2505V_H */ 65