s921.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *   Sharp s921 driver
 4 *
 5 *   Copyright (C) 2009 Mauro Carvalho Chehab
 6 *   Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com>
 7 */
 8
 9#ifndef S921_H
10#define S921_H
11
12#include <linux/dvb/frontend.h>
13
14struct s921_config {
15	/* the demodulator's i2c address */
16	u8 demod_address;
17};
18
19#if IS_REACHABLE(CONFIG_DVB_S921)
20extern struct dvb_frontend *s921_attach(const struct s921_config *config,
21					   struct i2c_adapter *i2c);
22extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *);
23#else
24static inline struct dvb_frontend *s921_attach(
25	const struct s921_config *config, struct i2c_adapter *i2c)
26{
27	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
28	return NULL;
29}
30static inline struct i2c_adapter *
31	s921_get_tuner_i2c_adapter(struct dvb_frontend *fe)
32{
33	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
34	return NULL;
35}
36#endif
37
38#endif /* S921_H */