touch.h File Reference

#include <stdbool.h>
#include <stdint.h>
#include <pbl/device.h>
#include <pbl/kernel/mutex.h>

Data Structures
struct	pbl_touch_props
	Touchscreen properties, the devicetree touchscreen-* properties. More...
struct	pbl_touch_ops
	Touchscreen driver operations, called with the device lock held. More...
struct	pbl_touch_sample
	Last sample reported by a touchscreen. More...
struct	pbl_touch_state
	Touchscreen runtime state. More...
struct	pbl_touch
	Touchscreen. More...

Macros
#define	PBL_TOUCH_STATE_DEFINE(sym)
	Define the class state of a touchscreen.
#define	PBL_TOUCH_INIT(sym, _name, _parent, _ops, ...)
	Initialize a struct pbl_touch.

Functions
int	pbl_touch_enable (const struct pbl_touch *touch)
	Take a reference on the touchscreen, powering it up on the first one.
int	pbl_touch_disable (const struct pbl_touch *touch)
	Drop a reference taken with pbl_touch_enable(), powering the touchscreen down on the last one.
bool	pbl_touch_is_enabled (const struct pbl_touch *touch)
	Check whether the touchscreen has users.
void	pbl_touch_get_last (const struct pbl_touch *touch, struct pbl_touch_sample *sample)
	Get the last sample reported.
void	pbl_touch_lock (const struct pbl_touch *touch)
	Take the device lock.
void	pbl_touch_unlock (const struct pbl_touch *touch)
	Release the device lock.
void	pbl_touch_report (const struct pbl_touch *touch, bool down, uint16_t x, uint16_t y)
	Report a sample.
void	pbl_touch_report_gesture (const struct pbl_touch *touch, uint16_t code, uint16_t x, uint16_t y)
	Report a gesture recognized by the controller.

Variables
const struct pbl_touch *const	TOUCH
	The board's touchscreen.