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/platform_device.h>
10#include <linux/spinlock.h>
11#include <linux/types.h>
12
13enum 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
23struct 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
64extern struct ams ams_info;
65
66extern void ams_sensors(s8 *x, s8 *y, s8 *z);
67extern int ams_sensor_attach(void);
68extern void ams_sensor_detach(void);
69
70extern int ams_pmu_init(struct device_node *np);
71extern int ams_i2c_init(struct device_node *np);
72
73extern int ams_input_init(void);
74extern void ams_input_exit(void);
75
76#endif /* _AMS_H */
77

source code of linux/drivers/macintosh/ams/ams.h