1 /* 2 * helene.h 3 * 4 * Sony HELENE DVB-S/S2/T/T2/C/C2/ISDB-T/S tuner driver (CXD2858ER) 5 * 6 * Copyright 2012 Sony Corporation 7 * Copyright (C) 2014 NetUP Inc. 8 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 */ 20 21 #ifndef __DVB_HELENE_H__ 22 #define __DVB_HELENE_H__ 23 24 #include <linux/kconfig.h> 25 #include <linux/dvb/frontend.h> 26 #include <linux/i2c.h> 27 28 enum helene_xtal { 29 SONY_HELENE_XTAL_16000, /* 16 MHz */ 30 SONY_HELENE_XTAL_20500, /* 20.5 MHz */ 31 SONY_HELENE_XTAL_24000, /* 24 MHz */ 32 SONY_HELENE_XTAL_41000 /* 41 MHz */ 33 }; 34 35 /** 36 * struct helene_config - the configuration of 'Helene' tuner driver 37 * @i2c_address: I2C address of the tuner 38 * @xtal_freq_mhz: Oscillator frequency, MHz 39 * @set_tuner_priv: Callback function private context 40 * @set_tuner_callback: Callback function that notifies the parent driver 41 * which tuner is active now 42 */ 43 struct helene_config { 44 u8 i2c_address; 45 u8 xtal_freq_mhz; 46 void *set_tuner_priv; 47 int (*set_tuner_callback)(void *, int); 48 enum helene_xtal xtal; 49 }; 50 51 #if IS_REACHABLE(CONFIG_DVB_HELENE) 52 extern struct dvb_frontend *helene_attach(struct dvb_frontend *fe, 53 const struct helene_config *config, 54 struct i2c_adapter *i2c); 55 #else 56 static inline struct dvb_frontend *helene_attach(struct dvb_frontend *fe, 57 const struct helene_config *config, 58 struct i2c_adapter *i2c) 59 { 60 pr_warn("%s: driver disabled by Kconfig\n", __func__); 61 return NULL; 62 } 63 #endif 64 65 #if IS_REACHABLE(CONFIG_DVB_HELENE) 66 extern struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe, 67 const struct helene_config *config, 68 struct i2c_adapter *i2c); 69 #else 70 static inline struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe, 71 const struct helene_config *config, 72 struct i2c_adapter *i2c) 73 { 74 pr_warn("%s: driver disabled by Kconfig\n", __func__); 75 return NULL; 76 } 77 #endif 78 79 #endif 80