1 /*
2  * lnbh25.c
3  *
4  * Driver for LNB supply and control IC LNBH25
5  *
6  * Copyright (C) 2014 NetUP Inc.
7  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
8  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  */
20 
21 #ifndef LNBH25_H
22 #define LNBH25_H
23 
24 #include <linux/i2c.h>
25 #include <linux/kconfig.h>
26 #include <linux/dvb/frontend.h>
27 
28 /* 22 kHz tone enabled. Tone output controlled by DSQIN pin */
29 #define	LNBH25_TEN	0x01
30 /* Low power mode activated (used only with 22 kHz tone output disabled) */
31 #define LNBH25_LPM	0x02
32 /* DSQIN input pin is set to receive external 22 kHz TTL signal source */
33 #define LNBH25_EXTM	0x04
34 
35 struct lnbh25_config {
36 	u8	i2c_address;
37 	u8	data2_config;
38 };
39 
40 #if IS_REACHABLE(CONFIG_DVB_LNBH25)
41 struct dvb_frontend *lnbh25_attach(
42 	struct dvb_frontend *fe,
43 	struct lnbh25_config *cfg,
44 	struct i2c_adapter *i2c);
45 #else
46 static inline struct dvb_frontend *lnbh25_attach(
47 	struct dvb_frontend *fe,
48 	struct lnbh25_config *cfg,
49 	struct i2c_adapter *i2c)
50 {
51 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
52 	return NULL;
53 }
54 #endif
55 
56 #endif
57