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 */ 77