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
35struct lnbh25_config {
36	u8	i2c_address;
37	u8	data2_config;
38};
39
40#if IS_REACHABLE(CONFIG_DVB_LNBH25)
41struct dvb_frontend *lnbh25_attach(
42	struct dvb_frontend *fe,
43	struct lnbh25_config *cfg,
44	struct i2c_adapter *i2c);
45#else
46static 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