| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * ascot2e.h |
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| 4 | * |
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| 5 | * Sony Ascot3E DVB-T/T2/C/C2 tuner driver |
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| 6 | * |
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| 7 | * Copyright 2012 Sony Corporation |
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| 8 | * Copyright (C) 2014 NetUP Inc. |
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| 9 | * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru> |
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| 10 | * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru> |
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| 11 | */ |
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| 12 | |
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| 13 | #ifndef __DVB_ASCOT2E_H__ |
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| 14 | #define __DVB_ASCOT2E_H__ |
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| 15 | |
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| 16 | #include <linux/dvb/frontend.h> |
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| 17 | #include <linux/i2c.h> |
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| 18 | |
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| 19 | /** |
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| 20 | * struct ascot2e_config - the configuration of Ascot2E tuner driver |
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| 21 | * @i2c_address: I2C address of the tuner |
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| 22 | * @xtal_freq_mhz: Oscillator frequency, MHz |
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| 23 | * @set_tuner_priv: Callback function private context |
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| 24 | * @set_tuner_callback: Callback function that notifies the parent driver |
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| 25 | * which tuner is active now |
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| 26 | */ |
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| 27 | struct ascot2e_config { |
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| 28 | u8 i2c_address; |
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| 29 | u8 xtal_freq_mhz; |
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| 30 | void *set_tuner_priv; |
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| 31 | int (*set_tuner_callback)(void *, int); |
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| 32 | }; |
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| 33 | |
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| 34 | #if IS_REACHABLE(CONFIG_DVB_ASCOT2E) |
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| 35 | /** |
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| 36 | * ascot2e_attach - Attach an ascot2e tuner |
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| 37 | * |
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| 38 | * @fe: frontend to be attached |
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| 39 | * @config: pointer to &struct ascot2e_config with tuner configuration. |
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| 40 | * @i2c: i2c adapter to use. |
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| 41 | * |
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| 42 | * return: FE pointer on success, NULL on failure. |
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| 43 | */ |
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| 44 | extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, |
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| 45 | const struct ascot2e_config *config, |
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| 46 | struct i2c_adapter *i2c); |
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| 47 | #else |
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| 48 | static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe, |
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| 49 | const struct ascot2e_config *config, |
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| 50 | struct i2c_adapter *i2c) |
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| 51 | { |
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| 52 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
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| 53 | return NULL; |
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| 54 | } |
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| 55 | #endif |
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| 56 | |
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| 57 | #endif |
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| 58 | |
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