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