1 /* 2 * ascot2e.h 3 * 4 * Sony Ascot3E DVB-T/T2/C/C2 tuner driver 5 * 6 * Copyright 2012 Sony Corporation 7 * Copyright (C) 2014 NetUP Inc. 8 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru> 9 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru> 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 */ 21 22 #ifndef __DVB_ASCOT2E_H__ 23 #define __DVB_ASCOT2E_H__ 24 25 #include <linux/dvb/frontend.h> 26 #include <linux/i2c.h> 27 28 /** 29 * struct ascot2e_config - the configuration of Ascot2E tuner driver 30 * @i2c_address: I2C address of the tuner 31 * @xtal_freq_mhz: Oscillator frequency, MHz 32 * @set_tuner_priv: Callback function private context 33 * @set_tuner_callback: Callback function that notifies the parent driver 34 * which tuner is active now 35 */ 36 struct ascot2e_config { 37 u8 i2c_address; 38 u8 xtal_freq_mhz; 39 void *set_tuner_priv; 40 int (*set_tuner_callback)(void *, int); 41 }; 42 43 #if IS_REACHABLE(CONFIG_DVB_ASCOT2E) 44 /** 45 * Attach an ascot2e tuner 46 * 47 * @fe: frontend to be attached 48 * @config: pointer to &struct ascot2e_config with tuner configuration. 49 * @i2c: i2c adapter to use. 50 * 51 * return: FE pointer on success, NULL on failure. 52 */ 53 extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, 54 const struct ascot2e_config *config, 55 struct i2c_adapter *i2c); 56 #else 57 static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, 58 const struct ascot2e_config *config, 59 struct i2c_adapter *i2c) 60 { 61 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 62 return NULL; 63 } 64 #endif 65 66 #endif 67