1 /* 2 * AD714X CapTouch Programmable Controller driver (bus interfaces) 3 * 4 * Copyright 2009-2011 Analog Devices Inc. 5 * 6 * Licensed under the GPL-2 or later. 7 */ 8 9 #ifndef _AD714X_H_ 10 #define _AD714X_H_ 11 12 #include <linux/types.h> 13 14 #define STAGE_NUM 12 15 16 struct device; 17 struct ad714x_platform_data; 18 struct ad714x_driver_data; 19 struct ad714x_chip; 20 21 typedef int (*ad714x_read_t)(struct ad714x_chip *, unsigned short, unsigned short *, size_t); 22 typedef int (*ad714x_write_t)(struct ad714x_chip *, unsigned short, unsigned short); 23 24 struct ad714x_chip { 25 unsigned short l_state; 26 unsigned short h_state; 27 unsigned short c_state; 28 unsigned short adc_reg[STAGE_NUM]; 29 unsigned short amb_reg[STAGE_NUM]; 30 unsigned short sensor_val[STAGE_NUM]; 31 32 struct ad714x_platform_data *hw; 33 struct ad714x_driver_data *sw; 34 35 int irq; 36 struct device *dev; 37 ad714x_read_t read; 38 ad714x_write_t write; 39 40 struct mutex mutex; 41 42 unsigned product; 43 unsigned version; 44 45 __be16 xfer_buf[16] ____cacheline_aligned; 46 47 }; 48 49 int ad714x_disable(struct ad714x_chip *ad714x); 50 int ad714x_enable(struct ad714x_chip *ad714x); 51 struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, 52 ad714x_read_t read, ad714x_write_t write); 53 54 #endif 55