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hd29l2.h
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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 <[email protected]>
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/dvb/frontend.h>
27 
28 struct hd29l2_config {
29  /*
30  * demodulator I2C address
31  */
33 
34  /*
35  * tuner I2C address
36  * only needed when tuner is behind demod I2C-gate
37  */
39 
40  /*
41  * TS settings
42  */
43 #define HD29L2_TS_SERIAL 0x00
44 #define HD29L2_TS_PARALLEL 0x80
45 #define HD29L2_TS_CLK_NORMAL 0x40
46 #define HD29L2_TS_CLK_INVERTED 0x00
47 #define HD29L2_TS_CLK_GATED 0x20
48 #define HD29L2_TS_CLK_FREE 0x00
50 };
51 
52 
53 #if defined(CONFIG_DVB_HD29L2) || \
54  (defined(CONFIG_DVB_HD29L2_MODULE) && defined(MODULE))
55 extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config,
56  struct i2c_adapter *i2c);
57 #else
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 */