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Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
Copyright (C) 2005 Steven Toth <>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#ifndef CX24123_H
#define CX24123_H
#include <linux/dvb/frontend.h>
struct cx24123_config {
/* the demodulator's i2c address */
u8 demod_address;
/* Need to set device param for start_dma */
int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
/* 0 = LNB voltage normal, 1 = LNB voltage inverted */
int lnb_polarity;
/* this device has another tuner */
u8 dont_use_pll;
void (*agc_callback) (struct dvb_frontend *);
extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config,
struct i2c_adapter *i2c);
extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *);
static inline struct dvb_frontend *cx24123_attach(
const struct cx24123_config *config, struct i2c_adapter *i2c)
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
static inline struct i2c_adapter *
cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
#endif /* CX24123_H */