drivers/hwmon/ams/ams.h

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