xref: /linux/drivers/media/dvb-frontends/nxt6000.h (revision bd628c1bed7902ec1f24ba0fe70758949146abbe)
1 /*
2 	NxtWave Communications - NXT6000 demodulator driver
3 
4     Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
5     Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>
6 
7     This program is free software; you can redistribute it and/or modify
8     it under the terms of the GNU General Public License as published by
9     the Free Software Foundation; either version 2 of the License, or
10     (at your option) any later version.
11 
12     This program is distributed in the hope that it will be useful,
13     but WITHOUT ANY WARRANTY; without even the implied warranty of
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 
22 #ifndef NXT6000_H
23 #define NXT6000_H
24 
25 #include <linux/dvb/frontend.h>
26 
27 struct nxt6000_config
28 {
29 	/* the demodulator's i2c address */
30 	u8 demod_address;
31 
32 	/* should clock inversion be used? */
33 	u8 clock_inversion:1;
34 };
35 
36 #if IS_REACHABLE(CONFIG_DVB_NXT6000)
37 extern struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
38 					   struct i2c_adapter* i2c);
39 #else
40 static inline struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
41 					   struct i2c_adapter* i2c)
42 {
43 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
44 	return NULL;
45 }
46 #endif // CONFIG_DVB_NXT6000
47 
48 #endif // NXT6000_H
49