1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * AD7746 capacitive sensor driver supporting AD7745, AD7746 and AD7747 4 * 5 * Copyright 2011 Analog Devices Inc. 6 */ 7 8 #ifndef IIO_CDC_AD7746_H_ 9 #define IIO_CDC_AD7746_H_ 10 11 /* 12 * TODO: struct ad7746_platform_data needs to go into include/linux/iio 13 */ 14 15 #define AD7466_EXCLVL_0 0 /* +-VDD/8 */ 16 #define AD7466_EXCLVL_1 1 /* +-VDD/4 */ 17 #define AD7466_EXCLVL_2 2 /* +-VDD * 3/8 */ 18 #define AD7466_EXCLVL_3 3 /* +-VDD/2 */ 19 20 struct ad7746_platform_data { 21 unsigned char exclvl; /*Excitation Voltage Level */ 22 bool exca_en; /* enables EXCA pin as the excitation output */ 23 bool exca_inv_en; /* enables /EXCA pin as the excitation output */ 24 bool excb_en; /* enables EXCB pin as the excitation output */ 25 bool excb_inv_en; /* enables /EXCB pin as the excitation output */ 26 }; 27 28 #endif /* IIO_CDC_AD7746_H_ */ 29
