1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * lnbh25.c
4  *
5  * Driver for LNB supply and control IC LNBH25
6  *
7  * Copyright (C) 2014 NetUP Inc.
8  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
9  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
10  */
11 
12 #ifndef LNBH25_H
13 #define LNBH25_H
14 
15 #include <linux/i2c.h>
16 #include <linux/dvb/frontend.h>
17 
18 /* 22 kHz tone enabled. Tone output controlled by DSQIN pin */
19 #define	LNBH25_TEN	0x01
20 /* Low power mode activated (used only with 22 kHz tone output disabled) */
21 #define LNBH25_LPM	0x02
22 /* DSQIN input pin is set to receive external 22 kHz TTL signal source */
23 #define LNBH25_EXTM	0x04
24 
25 struct lnbh25_config {
26 	u8	i2c_address;
27 	u8	data2_config;
28 };
29 
30 #if IS_REACHABLE(CONFIG_DVB_LNBH25)
31 struct dvb_frontend *lnbh25_attach(
32 	struct dvb_frontend *fe,
33 	struct lnbh25_config *cfg,
34 	struct i2c_adapter *i2c);
35 #else
lnbh25_attach(struct dvb_frontend * fe,struct lnbh25_config * cfg,struct i2c_adapter * i2c)36 static inline struct dvb_frontend *lnbh25_attach(
37 	struct dvb_frontend *fe,
38 	struct lnbh25_config *cfg,
39 	struct i2c_adapter *i2c)
40 {
41 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
42 	return NULL;
43 }
44 #endif
45 
46 #endif
47