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
mt2131_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,struct mt2131_config * cfg,u16 if1)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