1/* 2 * lnbp21.h - driver for lnb supply and control ic lnbp21 3 * 4 * Copyright (C) 2006 Oliver Endriss 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 21 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html 22 * 23 * 24 * the project's page is at http://www.linuxtv.org 25 */ 26 27#ifndef _LNBP21_H 28#define _LNBP21_H 29 30#include <linux/kconfig.h> 31 32/* system register bits */ 33/* [RO] 0=OK; 1=over current limit flag */ 34#define LNBP21_OLF 0x01 35/* [RO] 0=OK; 1=over temperature flag (150 C) */ 36#define LNBP21_OTF 0x02 37/* [RW] 0=disable LNB power, enable loopthrough 38 1=enable LNB power, disable loopthrough */ 39#define LNBP21_EN 0x04 40/* [RW] 0=low voltage (13/14V, vert pol) 41 1=high voltage (18/19V,horiz pol) */ 42#define LNBP21_VSEL 0x08 43/* [RW] increase LNB voltage by 1V: 44 0=13/18V; 1=14/19V */ 45#define LNBP21_LLC 0x10 46/* [RW] 0=tone controlled by DSQIN pin 47 1=tone enable, disable DSQIN */ 48#define LNBP21_TEN 0x20 49/* [RW] current limit select: 50 0:Iout=500-650mA Isc=300mA 51 1:Iout=400-550mA Isc=200mA */ 52#define LNBP21_ISEL 0x40 53/* [RW] short-circuit protect: 54 0=pulsed (dynamic) curr limiting 55 1=static curr limiting */ 56#define LNBP21_PCL 0x80 57 58#include <linux/dvb/frontend.h> 59 60#if IS_ENABLED(CONFIG_DVB_LNBP21) 61/* override_set and override_clear control which 62 system register bits (above) to always set & clear */ 63extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 64 struct i2c_adapter *i2c, u8 override_set, 65 u8 override_clear); 66#else 67static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 68 struct i2c_adapter *i2c, u8 override_set, 69 u8 override_clear) 70{ 71 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 72 return NULL; 73} 74#endif 75 76#endif 77