rtl2832.h revision 298efdd3765dfdfb92976d3bb7113061f8b0a92a 
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	/*
47	 * tuner
48	 * XXX: This must be keep sync with dvb_usb_rtl28xxu demod driver.
49	 */
50#define RTL2832_TUNER_TUA9001   0x24
51#define RTL2832_TUNER_FC0012    0x26
52#define RTL2832_TUNER_FC0013    0x29
53	u8 tuner;
54};
55
56#if defined(CONFIG_DVB_RTL2832) || \
57	(defined(CONFIG_DVB_RTL2832_MODULE) && defined(MODULE))
58extern struct dvb_frontend *rtl2832_attach(
59	const struct rtl2832_config *cfg,
60	struct i2c_adapter *i2c
61);
62#else
63static inline struct dvb_frontend *rtl2832_attach(
64	const struct rtl2832_config *config,
65	struct i2c_adapter *i2c
66)
67{
68	pr_warn("%s: driver disabled by Kconfig\n", __func__);
69	return NULL;
70}
71#endif
72
73
74#endif /* RTL2832_H */
75