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Thomas Mair82041c02012-05-18 14:47:40 -03001/*
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 /*
47 */
48 u8 tuner;
49};
50
51
52#if defined(CONFIG_DVB_RTL2832) || \
53 (defined(CONFIG_DVB_RTL2832_MODULE) && defined(MODULE))
54extern struct dvb_frontend *rtl2832_attach(
55 const struct rtl2832_config *cfg,
56 struct i2c_adapter *i2c
57);
58
59extern struct i2c_adapter *rtl2832_get_tuner_i2c_adapter(
60 struct dvb_frontend *fe
61);
62#else
63static inline struct dvb_frontend *rtl2832_attach(
64 const struct rtl2832_config *config,
65 struct i2c_adapter *i2c
66)
67{
68 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
69 return NULL;
70}
71#endif
72
73
74#endif /* RTL2832_H */