text: /*
      VES1820  - Single Chip Cable Channel Receiver driver module
  
      Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
  
      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 VES1820_H
  #define VES1820_H
  
  #include <linux/dvb/frontend.h>
  
  #define VES1820_SELAGC_PWM 0
  #define VES1820_SELAGC_SIGNAMPERR 1
  
  struct ves1820_config
  {
  	/* the demodulator's i2c address */
  	u8 demod_address;
  
  	/* value of XIN to use */
  	u32 xin;
  
  	/* does inversion need inverted? */
  	u8 invert:1;
  
  	/* SELAGC control */
  	u8 selagc:1;
  };
  
  #if defined(CONFIG_DVB_VES1820) || (defined(CONFIG_DVB_VES1820_MODULE) && defined(MODULE))
  extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
  					   struct i2c_adapter* i2c, u8 pwm);
  #else
  static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
  					   struct i2c_adapter* i2c, u8 pwm)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  	return NULL;
  }
  #endif // CONFIG_DVB_VES1820
  
  #endif // VES1820_H
  