media/dvb-frontends/s921.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  *   Sharp s921 driver
0004  *
0005  *   Copyright (C) 2009 Mauro Carvalho Chehab
0006  *   Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com>
0007  */
0008
0009 #ifndef S921_H
0010 #define S921_H
0011
0012 #include <linux/dvb/frontend.h>
0013
0014 struct s921_config {
0015     /* the demodulator's i2c address */
0016     u8 demod_address;
0017 };
0018
0019 #if IS_REACHABLE(CONFIG_DVB_S921)
0020 extern struct dvb_frontend *s921_attach(const struct s921_config *config,
0021                        struct i2c_adapter *i2c);
0022 extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *);
0023 #else
0024 static inline struct dvb_frontend *s921_attach(
0025     const struct s921_config *config, struct i2c_adapter *i2c)
0026 {
0027     printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
0028     return NULL;
0029 }
0030 static inline struct i2c_adapter *
0031     s921_get_tuner_i2c_adapter(struct dvb_frontend *fe)
0032 {
0033     printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
0034     return NULL;
0035 }
0036 #endif
0037
0038 #endif /* S921_H */