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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/isl6421.h 1.84 KB
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  /*
   * isl6421.h - driver for lnb supply and control ic ISL6421
   *
   * Copyright (C) 2006 Andrew de Quincey
   * Copyright (C) 2006 Oliver Endriss
   *
   * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
   *
   *
   * the project's page is at http://www.linuxtv.org
   */
  
  #ifndef _ISL6421_H
  #define _ISL6421_H
  
  #include <linux/dvb/frontend.h>
  
  /* system register bits */
  #define ISL6421_OLF1	0x01
  #define ISL6421_EN1	0x02
  #define ISL6421_VSEL1	0x04
  #define ISL6421_LLC1	0x08
  #define ISL6421_ENT1	0x10
  #define ISL6421_ISEL1	0x20
  #define ISL6421_DCL	0x40
  
  #if IS_ENABLED(CONFIG_DVB_ISL6421)
  /* override_set and override_clear control which system register bits (above) to always set & clear */
  extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
  			  u8 override_set, u8 override_clear, bool override_tone);
  #else
  static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
  						  u8 override_set, u8 override_clear, bool override_tone)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  #endif // CONFIG_DVB_ISL6421
  
  #endif