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 * To obtain the license, point your browser to 18 * http://www.gnu.org/copyleft/gpl.html 19 * 20 * 21 * the project's page is at https://linuxtv.org 22 */ 23 24 #ifndef _LNBP21_H 25 #define _LNBP21_H 26 27 /* system register bits */ 28 /* [RO] 0=OK; 1=over current limit flag */ 29 #define LNBP21_OLF 0x01 30 /* [RO] 0=OK; 1=over temperature flag (150 C) */ 31 #define LNBP21_OTF 0x02 32 /* [RW] 0=disable LNB power, enable loopthrough 33 1=enable LNB power, disable loopthrough */ 34 #define LNBP21_EN 0x04 35 /* [RW] 0=low voltage (13/14V, vert pol) 36 1=high voltage (18/19V,horiz pol) */ 37 #define LNBP21_VSEL 0x08 38 /* [RW] increase LNB voltage by 1V: 39 0=13/18V; 1=14/19V */ 40 #define LNBP21_LLC 0x10 41 /* [RW] 0=tone controlled by DSQIN pin 42 1=tone enable, disable DSQIN */ 43 #define LNBP21_TEN 0x20 44 /* [RW] current limit select: 45 0:Iout=500-650mA Isc=300mA 46 1:Iout=400-550mA Isc=200mA */ 47 #define LNBP21_ISEL 0x40 48 /* [RW] short-circuit protect: 49 0=pulsed (dynamic) curr limiting 50 1=static curr limiting */ 51 #define LNBP21_PCL 0x80 52 53 #include <linux/dvb/frontend.h> 54 55 #if IS_REACHABLE(CONFIG_DVB_LNBP21) 56 /* override_set and override_clear control which 57 system register bits (above) to always set & clear */ 58 extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 59 struct i2c_adapter *i2c, u8 override_set, 60 u8 override_clear); 61 #else 62 static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 63 struct i2c_adapter *i2c, u8 override_set, 64 u8 override_clear) 65 { 66 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 67 return NULL; 68 } 69 #endif 70 71 #endif 72