1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 Driver for Zarlink MT312 Satellite Channel Decoder 4 5 Copyright (C) 2003 Andreas Oberritter <obi@linuxtv.org> 6 7 8 References: 9 http://products.zarlink.com/product_profiles/MT312.htm 10 http://products.zarlink.com/product_profiles/SL1935.htm 11 */ 12 13 #ifndef MT312_H 14 #define MT312_H 15 16 #include <linux/dvb/frontend.h> 17 18 struct mt312_config { 19 /* the demodulator's i2c address */ 20 u8 demod_address; 21 22 /* inverted voltage setting */ 23 unsigned int voltage_inverted:1; 24 }; 25 26 #if IS_REACHABLE(CONFIG_DVB_MT312) 27 struct dvb_frontend *mt312_attach(const struct mt312_config *config, 28 struct i2c_adapter *i2c); 29 #else 30 static inline struct dvb_frontend *mt312_attach( 31 const struct mt312_config *config, struct i2c_adapter *i2c) 32 { 33 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 34 return NULL; 35 } 36 #endif /* CONFIG_DVB_MT312 */ 37 38 #endif /* MT312_H */ 39