1 /* 2 * include/linux/platform_data/media/si4713.h 3 * 4 * Board related data definitions for Si4713 i2c device driver. 5 * 6 * Copyright (c) 2009 Nokia Corporation 7 * Contact: Eduardo Valentin <eduardo.valentin@nokia.com> 8 * 9 * This file is licensed under the terms of the GNU General Public License 10 * version 2. This program is licensed "as is" without any warranty of any 11 * kind, whether express or implied. 12 * 13 */ 14 15 #ifndef SI4713_H 16 #define SI4713_H 17 18 /* The SI4713 I2C sensor chip has a fixed slave address of 0xc6 or 0x22. */ 19 #define SI4713_I2C_ADDR_BUSEN_HIGH 0x63 20 #define SI4713_I2C_ADDR_BUSEN_LOW 0x11 21 22 /* 23 * Platform dependent definition 24 */ 25 struct si4713_platform_data { 26 bool is_platform_device; 27 }; 28 29 /* 30 * Structure to query for Received Noise Level (RNL). 31 */ 32 struct si4713_rnl { 33 __u32 index; /* modulator index */ 34 __u32 frequency; /* frequency to perform rnl measurement */ 35 __s32 rnl; /* result of measurement in dBuV */ 36 __u32 reserved[4]; /* drivers and apps must init this to 0 */ 37 }; 38 39 /* 40 * This is the ioctl number to query for rnl. Users must pass a 41 * struct si4713_rnl pointer specifying desired frequency in 'frequency' field 42 * following driver capabilities (i.e V4L2_TUNER_CAP_LOW). 43 * Driver must return measured value in the same structure, filling 'rnl' field. 44 */ 45 #define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \ 46 struct si4713_rnl) 47 48 #endif /* ifndef SI4713_H*/ 49