Merge tag 'v4.10-rc1' into docs-next
[linux-block.git] / drivers / media / dvb-frontends / horus3a.h
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1/*
2 * horus3a.h
3 *
4 * Sony Horus3A DVB-S/S2 tuner driver
5 *
6 * Copyright 2012 Sony Corporation
7 * Copyright (C) 2014 NetUP Inc.
8 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
9 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 */
21
22#ifndef __DVB_HORUS3A_H__
23#define __DVB_HORUS3A_H__
24
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25#include <linux/dvb/frontend.h>
26#include <linux/i2c.h>
27
28/**
29 * struct horus3a_config - the configuration of Horus3A tuner driver
30 * @i2c_address: I2C address of the tuner
31 * @xtal_freq_mhz: Oscillator frequency, MHz
32 * @set_tuner_priv: Callback function private context
33 * @set_tuner_callback: Callback function that notifies the parent driver
34 * which tuner is active now
35 */
36struct horus3a_config {
37 u8 i2c_address;
38 u8 xtal_freq_mhz;
39 void *set_tuner_priv;
40 int (*set_tuner_callback)(void *, int);
41};
42
43#if IS_REACHABLE(CONFIG_DVB_HORUS3A)
44extern struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
45 const struct horus3a_config *config,
46 struct i2c_adapter *i2c);
47#else
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48static inline struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
49 const struct horus3a_config *config,
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50 struct i2c_adapter *i2c)
51{
52 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
53 return NULL;
54}
55#endif
56
57#endif