1 /*
2 * HDIC HD29L2 DMB-TH demodulator driver
3 *
4 * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D
5 *
6 * Author: Antti Palosaari <crope@iki.fi>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #ifndef HD29L2_H
24 #define HD29L2_H
25
26 #include <linux/kconfig.h>
27 #include <linux/dvb/frontend.h>
28
29 struct hd29l2_config {
30 /*
31 * demodulator I2C address
32 */
33 u8 i2c_addr;
34
35 /*
36 * tuner I2C address
37 * only needed when tuner is behind demod I2C-gate
38 */
39 u8 tuner_i2c_addr;
40
41 /*
42 * TS settings
43 */
44 #define HD29L2_TS_SERIAL 0x00
45 #define HD29L2_TS_PARALLEL 0x80
46 #define HD29L2_TS_CLK_NORMAL 0x40
47 #define HD29L2_TS_CLK_INVERTED 0x00
48 #define HD29L2_TS_CLK_GATED 0x20
49 #define HD29L2_TS_CLK_FREE 0x00
50 u8 ts_mode;
51 };
52
53
54 #if IS_REACHABLE(CONFIG_DVB_HD29L2)
55 extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config,
56 struct i2c_adapter *i2c);
57 #else
hd29l2_attach(const struct hd29l2_config * config,struct i2c_adapter * i2c)58 static inline struct dvb_frontend *hd29l2_attach(
59 const struct hd29l2_config *config, struct i2c_adapter *i2c)
60 {
61 pr_warn("%s: driver disabled by Kconfig\n", __func__);
62 return NULL;
63 }
64 #endif
65
66 #endif /* HD29L2_H */
67