1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Driver for Microtune MT2131 "QAM/8VSB single chip tuner" 4 * 5 * Copyright (c) 2006 Steven Toth <stoth@linuxtv.org> 6 */ 7 8 #ifndef __MT2131_H__ 9 #define __MT2131_H__ 10 11 struct dvb_frontend; 12 struct i2c_adapter; 13 14 struct mt2131_config { 15 u8 i2c_address; 16 u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */ 17 }; 18 19 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2131) 20 extern struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe, 21 struct i2c_adapter *i2c, 22 struct mt2131_config *cfg, 23 u16 if1); 24 #else 25 static inline struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe, 26 struct i2c_adapter *i2c, 27 struct mt2131_config *cfg, 28 u16 if1) 29 { 30 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 31 return NULL; 32 } 33 #endif /* CONFIG_MEDIA_TUNER_MT2131 */ 34 35 #endif /* __MT2131_H__ */ 36