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  * 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 
29 struct s5h1420_config
30 {
31 	/* the demodulator's i2c address */
32 	u8 demod_address;
33 
34 	/* does the inversion require inversion? */
35 	u8 invert:1;
36 
37 	u8 repeated_start_workaround:1;
38 	u8 cdclk_polarity:1; /* 1 == falling edge, 0 == raising edge */
39 
40 	u8 serial_mpeg:1;
41 };
42 
43 #if IS_REACHABLE(CONFIG_DVB_S5H1420)
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
62