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 */
96