| Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1 | /* |
| 2 | * include/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 | /* Set power state, zero is off, non-zero is on. */ |
| 27 | int (*set_power)(int power); |
| 28 | }; |
| 29 | |
| 30 | /* |
| 31 | * Structure to query for Received Noise Level (RNL). |
| 32 | */ |
| 33 | struct si4713_rnl { |
| 34 | __u32 index; /* modulator index */ |
| 35 | __u32 frequency; /* frequency to peform rnl measurement */ |
| 36 | __s32 rnl; /* result of measurement in dBuV */ |
| 37 | __u32 reserved[4]; /* drivers and apps must init this to 0 */ |
| 38 | }; |
| 39 | |
| 40 | /* |
| 41 | * This is the ioctl number to query for rnl. Users must pass a |
| 42 | * struct si4713_rnl pointer specifying desired frequency in 'frequency' field |
| 43 | * following driver capabilities (i.e V4L2_TUNER_CAP_LOW). |
| 44 | * Driver must return measured value in the same struture, filling 'rnl' field. |
| 45 | */ |
| 46 | #define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \ |
| 47 | struct si4713_rnl) |
| 48 | |
| 49 | #endif /* ifndef SI4713_H*/ |