| /* 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 |
