| Michael Hennerich | 83e416f | 2011-09-21 11:15:49 +0100 | [diff] [blame] | 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 | |
| 21 | struct 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_ */ |