1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * isl6405.h - driver for dual lnb supply and control ic ISL6405 4 * 5 * Copyright (C) 2008 Hartmut Hackmann 6 * Copyright (C) 2006 Oliver Endriss 7 * 8 * the project's page is at https://linuxtv.org 9 */ 10 11 #ifndef _ISL6405_H 12 #define _ISL6405_H 13 14 #include <linux/dvb/frontend.h> 15 16 /* system register bits */ 17 18 /* this bit selects register (control) 1 or 2 19 note that the bit maps are different */ 20 21 #define ISL6405_SR 0x80 22 23 /* SR = 0 */ 24 #define ISL6405_OLF1 0x01 25 #define ISL6405_EN1 0x02 26 #define ISL6405_VSEL1 0x04 27 #define ISL6405_LLC1 0x08 28 #define ISL6405_ENT1 0x10 29 #define ISL6405_ISEL1 0x20 30 #define ISL6405_DCL 0x40 31 32 /* SR = 1 */ 33 #define ISL6405_OLF2 0x01 34 #define ISL6405_OTF 0x02 35 #define ISL6405_EN2 0x04 36 #define ISL6405_VSEL2 0x08 37 #define ISL6405_LLC2 0x10 38 #define ISL6405_ENT2 0x20 39 #define ISL6405_ISEL2 0x40 40 41 #if IS_REACHABLE(CONFIG_DVB_ISL6405) 42 /* override_set and override_clear control which system register bits (above) 43 * to always set & clear 44 */ 45 extern struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, 46 u8 i2c_addr, u8 override_set, u8 override_clear); 47 #else 48 static inline struct dvb_frontend *isl6405_attach(struct dvb_frontend *fe, 49 struct i2c_adapter *i2c, u8 i2c_addr, 50 u8 override_set, u8 override_clear) 51 { 52 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 53 return NULL; 54 } 55 #endif /* CONFIG_DVB_ISL6405 */ 56 57 #endif 58