| /* |
| * 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*/ |