Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
[deliverable/linux.git] / drivers / media / dvb-frontends / rtl2832.h
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1/*
2 * Realtek RTL2832 DVB-T demodulator driver
3 *
4 * Copyright (C) 2012 Thomas Mair <thomas.mair86@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21#ifndef RTL2832_H
22#define RTL2832_H
23
24#include <linux/dvb/frontend.h>
25
26struct rtl2832_config {
27 /*
28 * Demodulator I2C address.
29 */
30 u8 i2c_addr;
31
32 /*
33 * Xtal frequency.
34 * Hz
35 * 4000000, 16000000, 25000000, 28800000
36 */
37 u32 xtal;
38
39 /*
40 * IFs for all used modes.
41 * Hz
42 * 4570000, 4571429, 36000000, 36125000, 36166667, 44000000
43 */
44 u32 if_dvbt;
45
46 /*
832cc7cd
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47 * tuner
48 * XXX: This must be keep sync with dvb_usb_rtl28xxu demod driver.
82041c0a 49 */
5db4187a 50#define RTL2832_TUNER_TUA9001 0x24
832cc7cd 51#define RTL2832_TUNER_FC0012 0x26
7e688de0 52#define RTL2832_TUNER_E4000 0x27
832cc7cd 53#define RTL2832_TUNER_FC0013 0x29
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54 u8 tuner;
55};
56
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57#if defined(CONFIG_DVB_RTL2832) || \
58 (defined(CONFIG_DVB_RTL2832_MODULE) && defined(MODULE))
59extern struct dvb_frontend *rtl2832_attach(
60 const struct rtl2832_config *cfg,
61 struct i2c_adapter *i2c
62);
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63#else
64static inline struct dvb_frontend *rtl2832_attach(
65 const struct rtl2832_config *config,
66 struct i2c_adapter *i2c
67)
68{
298efdd3 69 pr_warn("%s: driver disabled by Kconfig\n", __func__);
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70 return NULL;
71}
72#endif
73
74
75#endif /* RTL2832_H */
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