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 */
25struct si4713_platform_data {
26	const char * const *supply_names;
27	unsigned supplies;
28	int gpio_reset; /* < 0 if not used */
29};
30
31/*
32 * Structure to query for Received Noise Level (RNL).
33 */
34struct 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*/
51