9a909447d3
Here is a patch which adds some documentation about meanings of the the lnbp21 system register bits. Signed-off-by: Hans Werner <hwerner4@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
53 lines
2.4 KiB
C
53 lines
2.4 KiB
C
/*
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* lnbp21.h - driver for lnb supply and control ic lnbp21
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*
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* Copyright (C) 2006 Oliver Endriss
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*
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*
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* the project's page is at http://www.linuxtv.org
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*/
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#ifndef _LNBP21_H
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#define _LNBP21_H
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/* system register bits */
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#define LNBP21_OLF 0x01 /* [R-only] 0=OK; 1=over current limit flag*/
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#define LNBP21_OTF 0x02 /* [R-only] 0=OK; 1=over temperature flag (150degC typ) */
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#define LNBP21_EN 0x04 /* [RW] 0=disable LNB power, enable loopthrough; 1=enable LNB power, disable loopthrough*/
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#define LNBP21_VSEL 0x08 /* [RW] 0=low voltage (13/14V, vert pol); 1=high voltage (18/19V,horiz pol) */
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#define LNBP21_LLC 0x10 /* [RW] increase LNB voltage by 1V: 0=13/18V; 1=14/19V */
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#define LNBP21_TEN 0x20 /* [RW] 0=tone controlled by DSQIN pin; 1=tone enable, disable DSQIN */
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#define LNBP21_ISEL 0x40 /* [RW] current limit select 0:Iout=500-650mA,Isc=300mA ; 1:Iout=400-550mA,Isc=200mA*/
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#define LNBP21_PCL 0x80 /* [RW] short-circuit prot: 0=pulsed (dynamic) curr limiting; 1=static curr limiting*/
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#include <linux/dvb/frontend.h>
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#if defined(CONFIG_DVB_LNBP21) || (defined(CONFIG_DVB_LNBP21_MODULE) && defined(MODULE))
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/* override_set and override_clear control which system register bits (above) to always set & clear */
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extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear);
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#else
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static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
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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 // CONFIG_DVB_LNBP21
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#endif // _LNBP21_H
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