1 /* 2 * lnbp22.h - driver for lnb supply and control ic lnbp22 3 * 4 * Copyright (C) 2006 Dominik Kuhlen 5 * Based on lnbp21.h 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * To obtain the license, point your browser to 19 * http://www.gnu.org/copyleft/gpl.html 20 * 21 * 22 * the project's page is at https://linuxtv.org 23 */ 24 25 #ifndef _LNBP22_H 26 #define _LNBP22_H 27 28 /* Enable */ 29 #define LNBP22_EN 0x10 30 /* Voltage selection */ 31 #define LNBP22_VSEL 0x02 32 /* Plus 1 Volt Bit */ 33 #define LNBP22_LLC 0x01 34 35 #include <linux/dvb/frontend.h> 36 37 #if IS_REACHABLE(CONFIG_DVB_LNBP22) 38 /* 39 * override_set and override_clear control which system register bits (above) 40 * to always set & clear 41 */ 42 extern struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe, 43 struct i2c_adapter *i2c); 44 #else 45 static inline struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe, 46 struct i2c_adapter *i2c) 47 { 48 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 49 return NULL; 50 } 51 #endif /* CONFIG_DVB_LNBP22 */ 52 53 #endif /* _LNBP22_H */ 54