xmega/applications/xmega_a3bu_xplained_demo/keyboard.h File Reference

Keyboard driver.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include "gpio.h"

Data Structures
struct	keyboard_event
	Struct to hold a keycode and the related event. More...

Macros
Keyboard definitions
#define	KEYBOARD_NO_KEY   0
#define	KEYBOARD_UP   38
#define	KEYBOARD_UP_MASK   2
#define	KEYBOARD_DOWN   40
#define	KEYBOARD_DOWN_MASK   4
#define	KEYBOARD_ENTER   13
#define	KEYBOARD_ENTER_MASK   1
#define	KEYBOARD_BACK   8
#define	KEYBOARD_BACK_MASK   8

Typedefs
typedef uint8_t	keycode_t

Enumerations
enum	keyboard_event_type {   KEYBOARD_NO_EVENT,   KEYBOARD_PRESS,   KEYBOARD_RELEASE,   KEYBOARD_NO_EVENT,   KEYBOARD_PRESS,   KEYBOARD_RELEASE }
	Definition of the different keyboard event types. More...

Functions
void	keyboard_get_key_state (struct keyboard_event *key)
	Check the status of the keyboard. More...

#define KEYBOARD_BACK   8

Referenced by display_date_time_application(), keyboard_get_key_state(), lightsensor_application(), ntc_sensor_application(), and production_date_application().

#define KEYBOARD_BACK_MASK   8

Referenced by keyboard_get_key_state().

#define KEYBOARD_DOWN   40

Referenced by cdc_getkey(), and keyboard_get_key_state().

#define KEYBOARD_DOWN_MASK   4

Referenced by keyboard_get_key_state().

#define KEYBOARD_ENTER   13

Referenced by keyboard_get_key_state().

#define KEYBOARD_ENTER_MASK   1

Referenced by keyboard_get_key_state().

#define KEYBOARD_NO_KEY   0

Referenced by cdc_getkey(), and keyboard_get_key_state().

#define KEYBOARD_UP   38

Referenced by cdc_getkey(), and keyboard_get_key_state().

#define KEYBOARD_UP_MASK   2

Referenced by keyboard_get_key_state().

typedef uint8_t keycode_t

enum keyboard_event_type

Definition of the different keyboard event types.

Enumerator
KEYBOARD_NO_EVENT
KEYBOARD_PRESS
KEYBOARD_RELEASE
KEYBOARD_NO_EVENT
KEYBOARD_PRESS
KEYBOARD_RELEASE

void keyboard_get_key_state

(

struct keyboard_event *

keybuffer

)

Check the status of the keyboard.

Parameters

keybuffer

a keyboard_event struct to store keyboard status

This function checks what keys have been pressed or released, updating their status and saving the current key change (if any) in the specified buffer.

Parameters

keybuffer

Pointer to keyboard_event struct to store status.