1/*
2 * Elonics R820T silicon tuner driver
3 *
4 * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
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 R820T_H
22#define R820T_H
23
24#include <media/dvb_frontend.h>
25
26enum r820t_chip {
27 CHIP_R820T,
28 CHIP_R620D,
29 CHIP_R828D,
30 CHIP_R828,
31 CHIP_R828S,
32 CHIP_R820C,
33};
34
35struct r820t_config {
36 u8 i2c_addr; /* 0x34 */
37 u32 xtal;
38 enum r820t_chip rafael_chip;
39 unsigned max_i2c_msg_len;
40 bool use_diplexer;
41 bool use_predetect;
42};
43
44#if IS_REACHABLE(CONFIG_MEDIA_TUNER_R820T)
45struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
46 struct i2c_adapter *i2c,
47 const struct r820t_config *cfg);
48#else
49static inline struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
50 struct i2c_adapter *i2c,
51 const struct r820t_config *cfg)
52{
53 pr_warn("%s: driver disabled by Kconfig\n", __func__);
54 return NULL;
55}
56#endif
57
58#endif
59