2 * include/media/si4713.h
4 * Board related data definitions for Si4713 i2c device driver.
6 * Copyright (c) 2009 Nokia Corporation
7 * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
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.
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
23 * Platform dependent definition
25 struct si4713_platform_data {
26 /* Set power state, zero is off, non-zero is on. */
27 int (*set_power)(int power);
31 * Structure to query for Received Noise Level (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 */
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.
46 #define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \
49 #endif /* ifndef SI4713_H*/