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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 { | |
cc6d618f DR |
26 | const char * const *supply_names; |
27 | unsigned supplies; | |
00df055a | 28 | int gpio_reset; /* < 0 if not used */ |
02bee89e EV |
29 | }; |
30 | ||
31 | /* | |
32 | * Structure to query for Received Noise Level (RNL). | |
33 | */ | |
34 | struct si4713_rnl { | |
35 | __u32 index; /* modulator index */ | |
36 | __u32 frequency; /* frequency to peform rnl measurement */ | |
37 | __s32 rnl; /* result of measurement in dBuV */ | |
38 | __u32 reserved[4]; /* drivers and apps must init this to 0 */ | |
39 | }; | |
40 | ||
41 | /* | |
42 | * This is the ioctl number to query for rnl. Users must pass a | |
43 | * struct si4713_rnl pointer specifying desired frequency in 'frequency' field | |
44 | * following driver capabilities (i.e V4L2_TUNER_CAP_LOW). | |
45 | * Driver must return measured value in the same struture, filling 'rnl' field. | |
46 | */ | |
47 | #define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \ | |
48 | struct si4713_rnl) | |
49 | ||
50 | #endif /* ifndef SI4713_H*/ |