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 <linux/kconfig.h>
25#include "dvb_frontend.h"
26
27enum r820t_chip {
28	CHIP_R820T,
29	CHIP_R620D,
30	CHIP_R828D,
31	CHIP_R828,
32	CHIP_R828S,
33	CHIP_R820C,
34};
35
36struct r820t_config {
37	u8 i2c_addr;		/* 0x34 */
38	u32 xtal;
39	enum r820t_chip rafael_chip;
40	unsigned max_i2c_msg_len;
41	bool use_diplexer;
42	bool use_predetect;
43};
44
45#if IS_REACHABLE(CONFIG_MEDIA_TUNER_R820T)
46struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
47				  struct i2c_adapter *i2c,
48				  const struct r820t_config *cfg);
49#else
50static inline struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
51						struct i2c_adapter *i2c,
52						const struct r820t_config *cfg)
53{
54	pr_warn("%s: driver disabled by Kconfig\n", __func__);
55	return NULL;
56}
57#endif
58
59#endif
60