| /* | |
| * 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*/ |