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s5h1420.h
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1 /*
2  * Driver for
3  * Samsung S5H1420 and
4  * PnpNetwork PN1010 QPSK Demodulator
5  *
6  * Copyright (C) 2005 Andrew de Quincey <[email protected]>
7  * Copyright (C) 2005-8 Patrick Boettcher <[email protected]>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  *
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  */
24 #ifndef S5H1420_H
25 #define S5H1420_H
26 
27 #include <linux/dvb/frontend.h>
28 
30 {
31  /* the demodulator's i2c address */
33 
34  /* does the inversion require inversion? */
36 
38  u8 cdclk_polarity:1; /* 1 == falling edge, 0 == raising edge */
39 
41 };
42 
43 #if defined(CONFIG_DVB_S5H1420) || (defined(CONFIG_DVB_S5H1420_MODULE) && defined(MODULE))
44 extern struct dvb_frontend *s5h1420_attach(const struct s5h1420_config *config,
45  struct i2c_adapter *i2c);
46 extern struct i2c_adapter *s5h1420_get_tuner_i2c_adapter(struct dvb_frontend *fe);
47 #else
48 static inline struct dvb_frontend *s5h1420_attach(const struct s5h1420_config *config,
49  struct i2c_adapter *i2c)
50 {
51  printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
52  return NULL;
53 }
54 
55 static inline struct i2c_adapter *s5h1420_get_tuner_i2c_adapter(struct dvb_frontend *fe)
56 {
57  return NULL;
58 }
59 #endif // CONFIG_DVB_S5H1420
60 
61 #endif // S5H1420_H