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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* lnbp21.h - driver for lnb supply and control ic lnbp21
*
* Copyright (C) 2006 Oliver Endriss
*
* the project's page is at https://linuxtv.org
*/
#ifndef _LNBP21_H
#define _LNBP21_H
/* system register bits */
/* [RO] 0=OK; 1=over current limit flag */
#define LNBP21_OLF 0x01
/* [RO] 0=OK; 1=over temperature flag (150 C) */
#define LNBP21_OTF 0x02
/* [RW] 0=disable LNB power, enable loopthrough
1=enable LNB power, disable loopthrough */
#define LNBP21_EN 0x04
/* [RW] 0=low voltage (13/14V, vert pol)
1=high voltage (18/19V,horiz pol) */
#define LNBP21_VSEL 0x08
/* [RW] increase LNB voltage by 1V:
0=13/18V; 1=14/19V */
#define LNBP21_LLC 0x10
/* [RW] 0=tone controlled by DSQIN pin
1=tone enable, disable DSQIN */
#define LNBP21_TEN 0x20
/* [RW] current limit select:
0:Iout=500-650mA Isc=300mA
1:Iout=400-550mA Isc=200mA */
#define LNBP21_ISEL 0x40
/* [RW] short-circuit protect:
0=pulsed (dynamic) curr limiting
1=static curr limiting */
#define LNBP21_PCL 0x80
#include <linux/dvb/frontend.h>
#if IS_REACHABLE(CONFIG_DVB_LNBP21)
/* override_set and override_clear control which
system register bits (above) to always set & clear */
extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, u8 override_set,
u8 override_clear);
#else
static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, u8 override_set,
u8 override_clear)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif
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