diff options
Diffstat (limited to 'drivers/media/dvb-frontends/helene.h')
| -rw-r--r-- | drivers/media/dvb-frontends/helene.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/helene.h b/drivers/media/dvb-frontends/helene.h new file mode 100644 index 000000000..32e0b1fb2 --- /dev/null +++ b/drivers/media/dvb-frontends/helene.h @@ -0,0 +1,88 @@ +/* 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 |