1 /*
2  * lnbh24.h - driver for lnb supply and control ic lnbh24
3  *
4  * Copyright (C) 2009 NetUP Inc.
5  * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
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  *
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21  */
22 
23 #ifndef _LNBH24_H
24 #define _LNBH24_H
25 
26 #include <linux/kconfig.h>
27 
28 /* system register bits */
29 #define LNBH24_OLF	0x01
30 #define LNBH24_OTF	0x02
31 #define LNBH24_EN	0x04
32 #define LNBH24_VSEL	0x08
33 #define LNBH24_LLC	0x10
34 #define LNBH24_TEN	0x20
35 #define LNBH24_TTX	0x40
36 #define LNBH24_PCL	0x80
37 
38 #include <linux/dvb/frontend.h>
39 
40 #if IS_REACHABLE(CONFIG_DVB_LNBP21)
41 /* override_set and override_clear control which
42    system register bits (above) to always set & clear */
43 extern struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
44 				struct i2c_adapter *i2c, u8 override_set,
45 				u8 override_clear, u8 i2c_addr);
46 #else
47 static inline struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
48 				struct i2c_adapter *i2c, u8 override_set,
49 				u8 override_clear, u8 i2c_addr)
50 {
51 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
52 	return NULL;
53 }
54 #endif
55 
56 #endif
57