1 /*
2     Driver for Zarlink MT312 Satellite Channel Decoder
3 
4     Copyright (C) 2003 Andreas Oberritter <obi@linuxtv.org>
5 
6     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10 
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 
15     GNU General Public License for more details.
16 
17     You should have received a copy of the GNU General Public License
18     along with this program; if not, write to the Free Software
19     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 
21     References:
22     http://products.zarlink.com/product_profiles/MT312.htm
23     http://products.zarlink.com/product_profiles/SL1935.htm
24 */
25 
26 #ifndef MT312_H
27 #define MT312_H
28 
29 #include <linux/dvb/frontend.h>
30 
31 struct mt312_config {
32 	/* the demodulator's i2c address */
33 	u8 demod_address;
34 
35 	/* inverted voltage setting */
36 	unsigned int voltage_inverted:1;
37 };
38 
39 #if IS_ENABLED(CONFIG_DVB_MT312)
40 struct dvb_frontend *mt312_attach(const struct mt312_config *config,
41 					struct i2c_adapter *i2c);
42 #else
43 static inline struct dvb_frontend *mt312_attach(
44 	const struct mt312_config *config, struct i2c_adapter *i2c)
45 {
46 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
47 	return NULL;
48 }
49 #endif /* CONFIG_DVB_MT312 */
50 
51 #endif /* MT312_H */
52