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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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/kconfig.h>
25#include <linux/dvb/frontend.h>
26
27struct rtl2832_config {
28 /*
29 * Demodulator I2C address.
30 */
31 u8 i2c_addr;
32
33 /*
34 * Xtal frequency.
35 * Hz
36 * 4000000, 16000000, 25000000, 28800000
37 */
38 u32 xtal;
39
40 /*
41 * tuner
42 * XXX: This must be keep sync with dvb_usb_rtl28xxu demod driver.
43 */
44#define RTL2832_TUNER_TUA9001 0x24
45#define RTL2832_TUNER_FC0012 0x26
46#define RTL2832_TUNER_E4000 0x27
47#define RTL2832_TUNER_FC0013 0x29
48#define RTL2832_TUNER_R820T 0x2a
49#define RTL2832_TUNER_R828D 0x2b
50 u8 tuner;
51};
52
53#if IS_ENABLED(CONFIG_DVB_RTL2832)
54struct dvb_frontend *rtl2832_attach(
55 const struct rtl2832_config *cfg,
56 struct i2c_adapter *i2c
57);
58
59extern struct i2c_adapter *rtl2832_get_i2c_adapter(
60 struct dvb_frontend *fe
61);
62
63extern struct i2c_adapter *rtl2832_get_private_i2c_adapter(
64 struct dvb_frontend *fe
65);
66
67#else
68
69static inline struct dvb_frontend *rtl2832_attach(
70 const struct rtl2832_config *config,
71 struct i2c_adapter *i2c
72)
73{
74 pr_warn("%s: driver disabled by Kconfig\n", __func__);
75 return NULL;
76}
77
78static inline struct i2c_adapter *rtl2832_get_i2c_adapter(
79 struct dvb_frontend *fe
80)
81{
82 return NULL;
83}
84
85static inline struct i2c_adapter *rtl2832_get_private_i2c_adapter(
86 struct dvb_frontend *fe
87)
88{
89 return NULL;
90}
91
92#endif
93
94
95#endif /* RTL2832_H */