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/pm.h>
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 extern const struct dev_pm_ops ad714x_pm;
50 struct 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