xref: /linux/drivers/media/dvb-frontends/horus3a.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
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 
25 #include <linux/kconfig.h>
26 #include <linux/dvb/frontend.h>
27 #include <linux/i2c.h>
28 
29 /**
30  * struct horus3a_config - the configuration of Horus3A tuner driver
31  * @i2c_address:    I2C address of the tuner
32  * @xtal_freq_mhz:  Oscillator frequency, MHz
33  * @set_tuner_priv: Callback function private context
34  * @set_tuner_callback: Callback function that notifies the parent driver
35  *          which tuner is active now
36  */
37 struct horus3a_config {
38 	u8	i2c_address;
39 	u8	xtal_freq_mhz;
40 	void	*set_tuner_priv;
41 	int	(*set_tuner_callback)(void *, int);
42 };
43 
44 #if IS_REACHABLE(CONFIG_DVB_HORUS3A)
45 extern struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
46 					const struct horus3a_config *config,
47 					struct i2c_adapter *i2c);
48 #else
49 static inline struct dvb_frontend *horus3a_attach(struct dvb_frontend *fe,
50 					const struct horus3a_config *config,
51 					struct i2c_adapter *i2c)
52 {
53 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
54 	return NULL;
55 }
56 #endif
57 
58 #endif
59