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Diffstat (limited to 'drivers/hwmon/ams/ams.h')
-rw-r--r--drivers/hwmon/ams/ams.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/hwmon/ams/ams.h b/drivers/hwmon/ams/ams.h
new file mode 100644
index 000000000000..240730e6bcde
--- /dev/null
+++ b/drivers/hwmon/ams/ams.h
@@ -0,0 +1,72 @@
1#include <linux/i2c.h>
2#include <linux/input.h>
3#include <linux/kthread.h>
4#include <linux/mutex.h>
5#include <linux/spinlock.h>
6#include <linux/types.h>
7#include <asm/of_device.h>
8
9enum 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
19struct 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 int i2c_bus;
50 int i2c_address;
51 struct i2c_client i2c_client;
52#endif
53
54 /* Joystick emulation */
55 struct task_struct *kthread;
56 struct input_dev *idev;
57 __u16 bustype;
58
59 /* calibrated null values */
60 int xcalib, ycalib, zcalib;
61};
62
63extern struct ams ams_info;
64
65extern void ams_sensors(s8 *x, s8 *y, s8 *z);
66extern int ams_sensor_attach(void);
67
68extern int ams_pmu_init(struct device_node *np);
69extern int ams_i2c_init(struct device_node *np);
70
71extern int ams_input_init(void);
72extern void ams_input_exit(void);