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
27 enum r820t_chip {
28 CHIP_R820T,
29 CHIP_R620D,
30 CHIP_R828D,
31 CHIP_R828,
32 CHIP_R828S,
33 CHIP_R820C,
34 };
35
36 struct 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_ENABLED(CONFIG_MEDIA_TUNER_R820T)
46 struct dvb_frontend *r820t_attach(struct dvb_frontend *fe,
47 struct i2c_adapter *i2c,
48 const struct r820t_config *cfg);
49 #else
r820t_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,const struct r820t_config * cfg)50 static 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