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kernel/linux-imx6_3.14.28/drivers/media/dvb-frontends/isl6423.h 1.61 KB
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  /*
  	Intersil ISL6423 SEC and LNB Power supply controller
  
  	Copyright (C) Manu Abraham <abraham.manu@gmail.com>
  
  	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 __ISL_6423_H
  #define __ISL_6423_H
  
  #include <linux/dvb/frontend.h>
  
  enum isl6423_current {
  	SEC_CURRENT_275m = 0,
  	SEC_CURRENT_515m,
  	SEC_CURRENT_635m,
  	SEC_CURRENT_800m,
  };
  
  enum isl6423_curlim {
  	SEC_CURRENT_LIM_ON = 1,
  	SEC_CURRENT_LIM_OFF
  };
  
  struct isl6423_config {
  	enum isl6423_current current_max;
  	enum isl6423_curlim curlim;
  	u8 addr;
  	u8 mod_extern;
  };
  
  #if IS_ENABLED(CONFIG_DVB_ISL6423)
  
  
  extern struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
  					   struct i2c_adapter *i2c,
  					   const struct isl6423_config *config);
  
  #else
  static inline struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
  						  struct i2c_adapter *i2c,
  						  const struct isl6423_config *config)
  {
  	printk(KERN_WARNING "%s: driver disabled by Kconfig
  ", __func__);
  	return NULL;
  }
  
  #endif /* CONFIG_DVB_ISL6423 */
  
  #endif /* __ISL_6423_H */