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/*
* Copyright (C) 2008-2012 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#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 {
/* Set power state, zero is off, non-zero is on. */
int (*set_power)(int power);
};
/*
* 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*/
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