| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * AD7746 capacitive sensor driver supporting AD7745, AD7746 and AD7747 |
| * |
| * Copyright 2011 Analog Devices Inc. |
| */ |
| |
| #ifndef IIO_CDC_AD7746_H_ |
| #define IIO_CDC_AD7746_H_ |
| |
| /* |
| * TODO: struct ad7746_platform_data needs to go into include/linux/iio |
| */ |
| |
| #define AD7466_EXCLVL_0 0 /* +-VDD/8 */ |
| #define AD7466_EXCLVL_1 1 /* +-VDD/4 */ |
| #define AD7466_EXCLVL_2 2 /* +-VDD * 3/8 */ |
| #define AD7466_EXCLVL_3 3 /* +-VDD/2 */ |
| |
| struct ad7746_platform_data { |
| unsigned char exclvl; /*Excitation Voltage Level */ |
| bool exca_en; /* enables EXCA pin as the excitation output */ |
| bool exca_inv_en; /* enables /EXCA pin as the excitation output */ |
| bool excb_en; /* enables EXCB pin as the excitation output */ |
| bool excb_inv_en; /* enables /EXCB pin as the excitation output */ |
| }; |
| |
| #endif /* IIO_CDC_AD7746_H_ */ |
