drivers/macintosh/ams/ams.h

   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
  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 */