1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * lnbp21.h - driver for lnb supply and control ic lnbp21 4 * 5 * Copyright (C) 2006 Oliver Endriss 6 * 7 * the project's page is at https://linuxtv.org 8 */ 9 10 #ifndef _LNBP21_H 11 #define _LNBP21_H 12 13 /* system register bits */ 14 /* [RO] 0=OK; 1=over current limit flag */ 15 #define LNBP21_OLF 0x01 16 /* [RO] 0=OK; 1=over temperature flag (150 C) */ 17 #define LNBP21_OTF 0x02 18 /* [RW] 0=disable LNB power, enable loopthrough 19 1=enable LNB power, disable loopthrough */ 20 #define LNBP21_EN 0x04 21 /* [RW] 0=low voltage (13/14V, vert pol) 22 1=high voltage (18/19V,horiz pol) */ 23 #define LNBP21_VSEL 0x08 24 /* [RW] increase LNB voltage by 1V: 25 0=13/18V; 1=14/19V */ 26 #define LNBP21_LLC 0x10 27 /* [RW] 0=tone controlled by DSQIN pin 28 1=tone enable, disable DSQIN */ 29 #define LNBP21_TEN 0x20 30 /* [RW] current limit select: 31 0:Iout=500-650mA Isc=300mA 32 1:Iout=400-550mA Isc=200mA */ 33 #define LNBP21_ISEL 0x40 34 /* [RW] short-circuit protect: 35 0=pulsed (dynamic) curr limiting 36 1=static curr limiting */ 37 #define LNBP21_PCL 0x80 38 39 #include <linux/dvb/frontend.h> 40 41 #if IS_REACHABLE(CONFIG_DVB_LNBP21) 42 /* override_set and override_clear control which 43 system register bits (above) to always set & clear */ 44 extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 45 struct i2c_adapter *i2c, u8 override_set, 46 u8 override_clear); 47 #else 48 static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, 49 struct i2c_adapter *i2c, u8 override_set, 50 u8 override_clear) 51 { 52 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 53 return NULL; 54 } 55 #endif 56 57 #endif 58