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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver4 5 Copyright (C) 2005 Steven Toth <stoth@linuxtv.org>6 7*/8 9#ifndef CX24123_H10#define CX24123_H11 12#include <linux/dvb/frontend.h>13 14struct cx24123_config {15 /* the demodulator's i2c address */16 u8 demod_address;17 18 /* Need to set device param for start_dma */19 int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);20 21 /* 0 = LNB voltage normal, 1 = LNB voltage inverted */22 int lnb_polarity;23 24 /* this device has another tuner */25 u8 dont_use_pll;26 void (*agc_callback) (struct dvb_frontend *);27};28 29#if IS_REACHABLE(CONFIG_DVB_CX24123)30extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,31 struct i2c_adapter *i2c);32extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *);33#else34static inline struct dvb_frontend *cx24123_attach(35 const struct cx24123_config *config, struct i2c_adapter *i2c)36{37 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);38 return NULL;39}40static inline struct i2c_adapter *41 cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)42{43 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);44 return NULL;45}46#endif47 48#endif /* CX24123_H */49