treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
[sfrench/cifs-2.6.git] / drivers / media / tuners / qt1010.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *  Driver for Quantek QT1010 silicon tuner
4  *
5  *  Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
6  *                     Aapo Tahkola <aet@rasterburn.org>
7  */
8
9 #ifndef QT1010_H
10 #define QT1010_H
11
12 #include <media/dvb_frontend.h>
13
14 struct qt1010_config {
15         u8 i2c_address;
16 };
17
18 /**
19  * Attach a qt1010 tuner to the supplied frontend structure.
20  *
21  * @param fe   frontend to attach to
22  * @param i2c  i2c adapter to use
23  * @param cfg  tuner hw based configuration
24  * @return fe  pointer on success, NULL on failure
25  */
26 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_QT1010)
27 extern struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
28                                           struct i2c_adapter *i2c,
29                                           struct qt1010_config *cfg);
30 #else
31 static inline struct dvb_frontend *qt1010_attach(struct dvb_frontend *fe,
32                                                  struct i2c_adapter *i2c,
33                                                  struct qt1010_config *cfg)
34 {
35         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
36         return NULL;
37 }
38 #endif // CONFIG_MEDIA_TUNER_QT1010
39
40 #endif