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Diffstat (limited to 'include/media/si4713.h')
-rw-r--r-- | include/media/si4713.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/media/si4713.h b/include/media/si4713.h new file mode 100644 index 000000000000..99850a54ed09 --- /dev/null +++ b/include/media/si4713.h | |||
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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*/ | ||