1 /*
2 * include/linux/platform_data/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 bool is_platform_device;
27 };
28
29 /*
30 * Structure to query for Received Noise Level (RNL).
31 */
32 struct si4713_rnl {
33 __u32 index; /* modulator index */
34 __u32 frequency; /* frequency to perform rnl measurement */
35 __s32 rnl; /* result of measurement in dBuV */
36 __u32 reserved[4]; /* drivers and apps must init this to 0 */
37 };
38
39 /*
40 * This is the ioctl number to query for rnl. Users must pass a
41 * struct si4713_rnl pointer specifying desired frequency in 'frequency' field
42 * following driver capabilities (i.e V4L2_TUNER_CAP_LOW).
43 * Driver must return measured value in the same structure, filling 'rnl' field.
44 */
45 #define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \
46 struct si4713_rnl)
47
48 #endif /* ifndef SI4713_H*/