xref: /linux/drivers/media/dvb-frontends/tda826x.h (revision c4ee0af3fa0dc65f690fc908f02b8355f9576ea0)
1   /*
2      Driver for Philips tda8262/tda8263 DVBS Silicon tuners
3 
4      (c) 2006 Andrew de Quincey
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   */
22 
23 #ifndef __DVB_TDA826X_H__
24 #define __DVB_TDA826X_H__
25 
26 #include <linux/i2c.h>
27 #include "dvb_frontend.h"
28 
29 /**
30  * Attach a tda826x tuner to the supplied frontend structure.
31  *
32  * @param fe Frontend to attach to.
33  * @param addr i2c address of the tuner.
34  * @param i2c i2c adapter to use.
35  * @param has_loopthrough Set to 1 if the card has a loopthrough RF connector.
36  * @return FE pointer on success, NULL on failure.
37  */
38 #if IS_ENABLED(CONFIG_DVB_TDA826X)
39 extern struct dvb_frontend* tda826x_attach(struct dvb_frontend *fe, int addr,
40 					   struct i2c_adapter *i2c,
41 					   int has_loopthrough);
42 #else
43 static inline struct dvb_frontend* tda826x_attach(struct dvb_frontend *fe,
44 						  int addr,
45 						  struct i2c_adapter *i2c,
46 						  int has_loopthrough)
47 {
48 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
49 	return NULL;
50 }
51 #endif // CONFIG_DVB_TDA826X
52 
53 #endif // __DVB_TDA826X_H__
54