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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/cx24123.h 1.9 KB
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  /*
      Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
  
      Copyright (C) 2005 Steven Toth <stoth@linuxtv.org>
  
      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
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      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/kconfig.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 *);
  };
  
  #if IS_ENABLED(CONFIG_DVB_CX24123)
  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 *);
  #else
  static inline struct dvb_frontend *cx24123_attach(
  	const struct cx24123_config *config, struct i2c_adapter *i2c)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  static struct i2c_adapter *
  	cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  #endif
  
  #endif /* CX24123_H */