77 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _AMS_H3#define _AMS_H4 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 /* Implementation41 *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_I2C52 /* I2C properties */53 struct i2c_client *i2c_client;54#endif55 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