diff options
Diffstat (limited to 'drivers/macintosh/ams/ams.h')
| -rw-r--r-- | drivers/macintosh/ams/ams.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h new file mode 100644 index 0000000000..5b295f5eef --- /dev/null +++ b/drivers/macintosh/ams/ams.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _AMS_H +#define _AMS_H + +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/kthread.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/types.h> + +enum ams_irq { + AMS_IRQ_FREEFALL = 0x01, + AMS_IRQ_SHOCK = 0x02, + AMS_IRQ_GLOBAL = 0x04, + AMS_IRQ_ALL = + AMS_IRQ_FREEFALL | + AMS_IRQ_SHOCK | + AMS_IRQ_GLOBAL, +}; + +struct ams { + /* Locks */ + spinlock_t irq_lock; + struct mutex lock; + + /* General properties */ + struct device_node *of_node; + struct platform_device *of_dev; + char has_device; + char vflag; + u32 orient1; + u32 orient2; + + /* Interrupt worker */ + struct work_struct worker; + u8 worker_irqs; + + /* Implementation + * + * Only call these functions with the main lock held. + */ + void (*exit)(void); + + void (*get_xyz)(s8 *x, s8 *y, s8 *z); + u8 (*get_vendor)(void); + + void (*clear_irq)(enum ams_irq reg); + +#ifdef CONFIG_SENSORS_AMS_I2C + /* I2C properties */ + struct i2c_client *i2c_client; +#endif + + /* Joystick emulation */ + struct input_dev *idev; + __u16 bustype; + + /* calibrated null values */ + int xcalib, ycalib, zcalib; +}; + +extern struct ams ams_info; + +extern void ams_sensors(s8 *x, s8 *y, s8 *z); +extern int ams_sensor_attach(void); +extern void ams_sensor_detach(void); + +extern int ams_pmu_init(struct device_node *np); +extern int ams_i2c_init(struct device_node *np); + +extern int ams_input_init(void); +extern void ams_input_exit(void); + +#endif /* _AMS_H */ |