47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* lnbh25.c
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*
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* Driver for LNB supply and control IC LNBH25
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*
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* Copyright (C) 2014 NetUP Inc.
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* Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
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* Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
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*/
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#ifndef LNBH25_H
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#define LNBH25_H
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#include <linux/i2c.h>
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#include <linux/dvb/frontend.h>
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/* 22 kHz tone enabled. Tone output controlled by DSQIN pin */
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#define LNBH25_TEN 0x01
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/* Low power mode activated (used only with 22 kHz tone output disabled) */
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#define LNBH25_LPM 0x02
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/* DSQIN input pin is set to receive external 22 kHz TTL signal source */
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#define LNBH25_EXTM 0x04
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struct lnbh25_config {
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u8 i2c_address;
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u8 data2_config;
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};
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#if IS_REACHABLE(CONFIG_DVB_LNBH25)
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struct dvb_frontend *lnbh25_attach(
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struct dvb_frontend *fe,
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struct lnbh25_config *cfg,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *lnbh25_attach(
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struct dvb_frontend *fe,
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struct lnbh25_config *cfg,
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struct i2c_adapter *i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif
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