/*
   * include/media/si4713.h
   *
   * Board related data definitions for Si4713 i2c device driver.
   *
   * Copyright (c) 2009 Nokia Corporation
   * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
   *
   * This file is licensed under the terms of the GNU General Public License
   * version 2. This program is licensed "as is" without any warranty of any
   * kind, whether express or implied.
   *
   */
  
  #ifndef SI4713_H
  #define SI4713_H
  
  /* The SI4713 I2C sensor chip has a fixed slave address of 0xc6 or 0x22. */
  #define SI4713_I2C_ADDR_BUSEN_HIGH	0x63
  #define SI4713_I2C_ADDR_BUSEN_LOW	0x11
  
  /*
   * Platform dependent definition
   */
  struct si4713_platform_data {

  	int gpio_reset; /* < 0 if not used */

  };
  
  /*
   * Structure to query for Received Noise Level (RNL).
   */
  struct si4713_rnl {
  	__u32 index;		/* modulator index */
  	__u32 frequency;	/* frequency to peform rnl measurement */
  	__s32 rnl;		/* result of measurement in dBuV */
  	__u32 reserved[4];	/* drivers and apps must init this to 0 */
  };
  
  /*
   * This is the ioctl number to query for rnl. Users must pass a
   * struct si4713_rnl pointer specifying desired frequency in 'frequency' field
   * following driver capabilities (i.e V4L2_TUNER_CAP_LOW).
   * Driver must return measured value in the same struture, filling 'rnl' field.
   */
  #define SI4713_IOC_MEASURE_RNL	_IOWR('V', BASE_VIDIOC_PRIVATE + 0, \
  						struct si4713_rnl)
  
  #endif /* ifndef SI4713_H*/