1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _AMS_H
3 #define _AMS_H
4 
5 #include <linux/i2c.h>
6 #include <linux/input.h>
7 #include <linux/kthread.h>
8 #include <linux/mutex.h>
9 #include <linux/spinlock.h>
10 #include <linux/types.h>
11 #include <linux/of_device.h>
12 
13 enum ams_irq {
14 	AMS_IRQ_FREEFALL = 0x01,
15 	AMS_IRQ_SHOCK = 0x02,
16 	AMS_IRQ_GLOBAL = 0x04,
17 	AMS_IRQ_ALL =
18 		AMS_IRQ_FREEFALL |
19 		AMS_IRQ_SHOCK |
20 		AMS_IRQ_GLOBAL,
21 };
22 
23 struct ams {
24 	/* Locks */
25 	spinlock_t irq_lock;
26 	struct mutex lock;
27 
28 	/* General properties */
29 	struct device_node *of_node;
30 	struct platform_device *of_dev;
31 	char has_device;
32 	char vflag;
33 	u32 orient1;
34 	u32 orient2;
35 
36 	/* Interrupt worker */
37 	struct work_struct worker;
38 	u8 worker_irqs;
39 
40 	/* Implementation
41 	 *
42 	 * Only call these functions with the main lock held.
43 	 */
44 	void (*exit)(void);
45 
46 	void (*get_xyz)(s8 *x, s8 *y, s8 *z);
47 	u8 (*get_vendor)(void);
48 
49 	void (*clear_irq)(enum ams_irq reg);
50 
51 #ifdef CONFIG_SENSORS_AMS_I2C
52 	/* I2C properties */
53 	struct i2c_client *i2c_client;
54 #endif
55 
56 	/* Joystick emulation */
57 	struct input_dev *idev;
58 	__u16 bustype;
59 
60 	/* calibrated null values */
61 	int xcalib, ycalib, zcalib;
62 };
63 
64 extern struct ams ams_info;
65 
66 extern void ams_sensors(s8 *x, s8 *y, s8 *z);
67 extern int ams_sensor_attach(void);
68 extern void ams_sensor_detach(void);
69 
70 extern int ams_pmu_init(struct device_node *np);
71 extern int ams_i2c_init(struct device_node *np);
72 
73 extern int ams_input_init(void);
74 extern void ams_input_exit(void);
75 
76 #endif /* _AMS_H */
77