1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3     Driver for STV0297 demodulator
4 
5     Copyright (C) 2003-2004 Dennis Noermann <dennis.noermann@noernet.de>
6 
7 */
8 
9 #ifndef STV0297_H
10 #define STV0297_H
11 
12 #include <linux/dvb/frontend.h>
13 #include <media/dvb_frontend.h>
14 
15 struct stv0297_config
16 {
17 	/* the demodulator's i2c address */
18 	u8 demod_address;
19 
20 	/* inittab - array of pairs of values.
21 	* First of each pair is the register, second is the value.
22 	* List should be terminated with an 0xff, 0xff pair.
23 	*/
24 	u8* inittab;
25 
26 	/* does the "inversion" need inverted? */
27 	u8 invert:1;
28 
29 	/* set to 1 if the device requires an i2c STOP during reading */
30 	u8 stop_during_read:1;
31 };
32 
33 #if IS_REACHABLE(CONFIG_DVB_STV0297)
34 extern struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
35 					   struct i2c_adapter* i2c);
36 #else
stv0297_attach(const struct stv0297_config * config,struct i2c_adapter * i2c)37 static inline struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
38 					   struct i2c_adapter* i2c)
39 {
40 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
41 	return NULL;
42 }
43 #endif // CONFIG_DVB_STV0297
44 
45 #endif // STV0297_H
46