macintosh/ams/ams.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #include <linux/i2c.h>
0003 #include <linux/input.h>
0004 #include <linux/kthread.h>
0005 #include <linux/mutex.h>
0006 #include <linux/spinlock.h>
0007 #include <linux/types.h>
0008 #include <linux/of_device.h>
0009
0010 enum ams_irq {
0011     AMS_IRQ_FREEFALL = 0x01,
0012     AMS_IRQ_SHOCK = 0x02,
0013     AMS_IRQ_GLOBAL = 0x04,
0014     AMS_IRQ_ALL =
0015         AMS_IRQ_FREEFALL |
0016         AMS_IRQ_SHOCK |
0017         AMS_IRQ_GLOBAL,
0018 };
0019
0020 struct ams {
0021     /* Locks */
0022     spinlock_t irq_lock;
0023     struct mutex lock;
0024
0025     /* General properties */
0026     struct device_node *of_node;
0027     struct platform_device *of_dev;
0028     char has_device;
0029     char vflag;
0030     u32 orient1;
0031     u32 orient2;
0032
0033     /* Interrupt worker */
0034     struct work_struct worker;
0035     u8 worker_irqs;
0036
0037     /* Implementation
0038      *
0039      * Only call these functions with the main lock held.
0040      */
0041     void (*exit)(void);
0042
0043     void (*get_xyz)(s8 *x, s8 *y, s8 *z);
0044     u8 (*get_vendor)(void);
0045
0046     void (*clear_irq)(enum ams_irq reg);
0047
0048 #ifdef CONFIG_SENSORS_AMS_I2C
0049     /* I2C properties */
0050     struct i2c_client *i2c_client;
0051 #endif
0052
0053     /* Joystick emulation */
0054     struct input_dev *idev;
0055     __u16 bustype;
0056
0057     /* calibrated null values */
0058     int xcalib, ycalib, zcalib;
0059 };
0060
0061 extern struct ams ams_info;
0062
0063 extern void ams_sensors(s8 *x, s8 *y, s8 *z);
0064 extern int ams_sensor_attach(void);
0065 extern void ams_sensor_detach(void);
0066
0067 extern int ams_pmu_init(struct device_node *np);
0068 extern int ams_i2c_init(struct device_node *np);
0069
0070 extern int ams_input_init(void);
0071 extern void ams_input_exit(void);