1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * AD714X CapTouch Programmable Controller driver (bus interfaces) 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright 2009-2011 Analog Devices Inc. 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef _AD714X_H_ 9*4882a593Smuzhiyun #define _AD714X_H_ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/types.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define STAGE_NUM 12 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct device; 16*4882a593Smuzhiyun struct ad714x_platform_data; 17*4882a593Smuzhiyun struct ad714x_driver_data; 18*4882a593Smuzhiyun struct ad714x_chip; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun typedef int (*ad714x_read_t)(struct ad714x_chip *, unsigned short, unsigned short *, size_t); 21*4882a593Smuzhiyun typedef int (*ad714x_write_t)(struct ad714x_chip *, unsigned short, unsigned short); 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun struct ad714x_chip { 24*4882a593Smuzhiyun unsigned short l_state; 25*4882a593Smuzhiyun unsigned short h_state; 26*4882a593Smuzhiyun unsigned short c_state; 27*4882a593Smuzhiyun unsigned short adc_reg[STAGE_NUM]; 28*4882a593Smuzhiyun unsigned short amb_reg[STAGE_NUM]; 29*4882a593Smuzhiyun unsigned short sensor_val[STAGE_NUM]; 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun struct ad714x_platform_data *hw; 32*4882a593Smuzhiyun struct ad714x_driver_data *sw; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun int irq; 35*4882a593Smuzhiyun struct device *dev; 36*4882a593Smuzhiyun ad714x_read_t read; 37*4882a593Smuzhiyun ad714x_write_t write; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun struct mutex mutex; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun unsigned product; 42*4882a593Smuzhiyun unsigned version; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun __be16 xfer_buf[16] ____cacheline_aligned; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun }; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun int ad714x_disable(struct ad714x_chip *ad714x); 49*4882a593Smuzhiyun int ad714x_enable(struct ad714x_chip *ad714x); 50*4882a593Smuzhiyun struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, 51*4882a593Smuzhiyun ad714x_read_t read, ad714x_write_t write); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #endif 54