[media] Add and use IS_REACHABLE macro
[linux-2.6-block.git] / drivers / media / dvb-frontends / tda665x.h
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1/*
2 TDA665x tuner driver
3 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/
19
20#ifndef __TDA665x_H
21#define __TDA665x_H
22
23struct tda665x_config {
24 char name[128];
25
26 u8 addr;
27 u32 frequency_min;
28 u32 frequency_max;
29 u32 frequency_offst;
30 u32 ref_multiplier;
31 u32 ref_divider;
32};
33
9b174527 34#if IS_REACHABLE(CONFIG_DVB_TDA665x)
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35
36extern struct dvb_frontend *tda665x_attach(struct dvb_frontend *fe,
37 const struct tda665x_config *config,
38 struct i2c_adapter *i2c);
39
40#else
41
42static inline struct dvb_frontend *tda665x_attach(struct dvb_frontend *fe,
f5ae4f6f 43 const struct tda665x_config *config,
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44 struct i2c_adapter *i2c)
45{
46 printk(KERN_WARNING "%s: Driver disabled by Kconfig\n", __func__);
47 return NULL;
48}
49
50#endif /* CONFIG_DVB_TDA665x */
51
52#endif /* __TDA665x_H */