diff options
Diffstat (limited to 'drivers/media/dvb-frontends/ascot2e.h')
| -rw-r--r-- | drivers/media/dvb-frontends/ascot2e.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/ascot2e.h b/drivers/media/dvb-frontends/ascot2e.h new file mode 100644 index 0000000000..d86b3de85c --- /dev/null +++ b/drivers/media/dvb-frontends/ascot2e.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * ascot2e.h + * + * Sony Ascot3E DVB-T/T2/C/C2 tuner driver + * + * Copyright 2012 Sony Corporation + * Copyright (C) 2014 NetUP Inc. + * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru> + * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru> + */ + +#ifndef __DVB_ASCOT2E_H__ +#define __DVB_ASCOT2E_H__ + +#include <linux/dvb/frontend.h> +#include <linux/i2c.h> + +/** + * struct ascot2e_config - the configuration of Ascot2E 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 + */ +struct ascot2e_config { + u8 i2c_address; + u8 xtal_freq_mhz; + void *set_tuner_priv; + int (*set_tuner_callback)(void *, int); +}; + +#if IS_REACHABLE(CONFIG_DVB_ASCOT2E) +/** + * ascot2e_attach - Attach an ascot2e tuner + * + * @fe: frontend to be attached + * @config: pointer to &struct ascot2e_config with tuner configuration. + * @i2c: i2c adapter to use. + * + * return: FE pointer on success, NULL on failure. + */ +extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, + const struct ascot2e_config *config, + struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, + const struct ascot2e_config *config, + struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif |