| /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
| /* | |
| * helene.h | |
| * | |
| * Sony HELENE DVB-S/S2/T/T2/C/C2/ISDB-T/S tuner driver (CXD2858ER) | |
| * | |
| * Copyright 2012 Sony Corporation | |
| * Copyright (C) 2014 NetUP Inc. | |
| * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru> | |
| */ | |
| #ifndef __DVB_HELENE_H__ | |
| #define __DVB_HELENE_H__ | |
| #include <linux/dvb/frontend.h> | |
| #include <linux/i2c.h> | |
| enum helene_xtal { | |
| SONY_HELENE_XTAL_16000, /* 16 MHz */ | |
| SONY_HELENE_XTAL_20500, /* 20.5 MHz */ | |
| SONY_HELENE_XTAL_24000, /* 24 MHz */ | |
| SONY_HELENE_XTAL_41000 /* 41 MHz */ | |
| }; | |
| /** | |
| * struct helene_config - the configuration of 'Helene' tuner driver | |
| * @i2c_address: I2C address of the tuner | |
| * @xtal_freq_mhz: Oscillator frequency, MHz | |
| * @set_tuner_priv: Callback function private context | |
| * @set_tuner_callback: Callback function that notifies the parent driver | |
| * which tuner is active now | |
| * @xtal: Cristal frequency as described by &enum helene_xtal | |
| * @fe: Frontend for which connects this tuner | |
| */ | |
| struct helene_config { | |
| u8 i2c_address; | |
| u8 xtal_freq_mhz; | |
| void *set_tuner_priv; | |
| int (*set_tuner_callback)(void *, int); | |
| enum helene_xtal xtal; | |
| struct dvb_frontend *fe; | |
| }; | |
| #if IS_REACHABLE(CONFIG_DVB_HELENE) | |
| /** | |
| * helene_attach - Attach a helene tuner (terrestrial and cable standards) | |
| * | |
| * @fe: frontend to be attached | |
| * @config: pointer to &struct helene_config with tuner configuration. | |
| * @i2c: i2c adapter to use. | |
| * | |
| * return: FE pointer on success, NULL on failure. | |
| */ | |
| extern struct dvb_frontend *helene_attach(struct dvb_frontend *fe, | |
| const struct helene_config *config, | |
| struct i2c_adapter *i2c); | |
| /** | |
| * helene_attach_s - Attach a helene tuner (satellite standards) | |
| * | |
| * @fe: frontend to be attached | |
| * @config: pointer to &struct helene_config with tuner configuration. | |
| * @i2c: i2c adapter to use. | |
| * | |
| * return: FE pointer on success, NULL on failure. | |
| */ | |
| extern struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe, | |
| const struct helene_config *config, | |
| struct i2c_adapter *i2c); | |
| #else | |
| static inline struct dvb_frontend *helene_attach(struct dvb_frontend *fe, | |
| const struct helene_config *config, | |
| struct i2c_adapter *i2c) | |
| { | |
| pr_warn("%s: driver disabled by Kconfig\n", __func__); | |
| return NULL; | |
| } | |
| static inline struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe, | |
| const struct helene_config *config, | |
| struct i2c_adapter *i2c) | |
| { | |
| pr_warn("%s: driver disabled by Kconfig\n", __func__); | |
| return NULL; | |
| } | |
| #endif | |
| #endif |