git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 02bee89e EV |
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*/ |