1 /*
2  * Driver for
3  *    Samsung S5H1420 and
4  *    PnpNetwork PN1010 QPSK Demodulator
5  *
6  * Copyright (C) 2005 Andrew de Quincey <adq_dvb@lidskialf.net>
7  * Copyright (C) 2005-8 Patrick Boettcher <pb@linuxtv.org>
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 #ifndef S5H1420_H
21 #define S5H1420_H
22 
23 #include <linux/dvb/frontend.h>
24 
25 struct s5h1420_config
26 {
27 	/* the demodulator's i2c address */
28 	u8 demod_address;
29 
30 	/* does the inversion require inversion? */
31 	u8 invert:1;
32 
33 	u8 repeated_start_workaround:1;
34 	u8 cdclk_polarity:1; /* 1 == falling edge, 0 == raising edge */
35 
36 	u8 serial_mpeg:1;
37 };
38 
39 #if IS_REACHABLE(CONFIG_DVB_S5H1420)
40 extern struct dvb_frontend *s5h1420_attach(const struct s5h1420_config *config,
41 	     struct i2c_adapter *i2c);
42 extern struct i2c_adapter *s5h1420_get_tuner_i2c_adapter(struct dvb_frontend *fe);
43 #else
44 static inline struct dvb_frontend *s5h1420_attach(const struct s5h1420_config *config,
45 					   struct i2c_adapter *i2c)
46 {
47 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
48 	return NULL;
49 }
50 
51 static inline struct i2c_adapter *s5h1420_get_tuner_i2c_adapter(struct dvb_frontend *fe)
52 {
53 	return NULL;
54 }
55 #endif // CONFIG_DVB_S5H1420
56 
57 #endif // S5H1420_H
58