1/*
2 * AD7746 capacitive sensor driver supporting AD7745, AD7746 and AD7747
3 *
4 * Copyright 2011 Analog Devices Inc.
5 *
6 * Licensed under the GPL-2.
7 */
8
9#ifndef IIO_CDC_AD7746_H_
10#define IIO_CDC_AD7746_H_
11
12/*
13 * TODO: struct ad7746_platform_data needs to go into include/linux/iio
14 */
15
16#define AD7466_EXCLVL_0		0 /* +-VDD/8 */
17#define AD7466_EXCLVL_1		1 /* +-VDD/4 */
18#define AD7466_EXCLVL_2		2 /* +-VDD * 3/8 */
19#define AD7466_EXCLVL_3		3 /* +-VDD/2 */
20
21struct ad7746_platform_data {
22	unsigned char exclvl;	/*Excitation Voltage Level */
23	bool exca_en;		/* enables EXCA pin as the excitation output */
24	bool exca_inv_en;	/* enables /EXCA pin as the excitation output */
25	bool excb_en;		/* enables EXCB pin as the excitation output */
26	bool excb_inv_en;	/* enables /EXCB pin as the excitation output */
27};
28
29#endif /* IIO_CDC_AD7746_H_ */
30