keys.c

Included Files

#include <nut/include/compiler.h>

#include <nut/include/cfg/os.h>

#include <stdlib.h>

#include <nut/include/include2/string.h>

#include <nut/include/sys/heap.h>

#include <nut/include/sys/event.h>

#include <nut/include/sys/timer.h>

#include <nut/include/sys/atom.h>

#include <nut/include/dev/board.h>

#include <nut/include/dev/gpio.h>

#include <nut/include/sys/nutdebug.h>

#include <nut/include/cfg/pca9555.h>

#include <nut/include/dev/keys.h>

Preprocessor definitions

#define IOXP_PORT0 0x80

#define KPRINTF( args, ... )

Typedef KEYEventT

typedef struct {...} KEYEventT

`struct`
`{`
`void* next;`	< Pointer to next key or NULL on last key
`HANDLE* event;`	< Handle for key event
`void (*callback)(void);`	< Function Pointer if key is activated
`int bank;`	< GPIO bank of key
`int pin;`	< GPIO pin of key
`int lastState;`	< last state sampled from port
`int newState;`	< current state sampled from port
`int fx;`	< Action type of key
`uint32_t fxt;`	< time for action
`uint32_t TimeDown;`	< System time in ms at key down recognized
`}`

Global Variable key_tmr

HANDLE key_tmr

Visible in:		nut/dev/keys.c
Used in:	NutRegisterKey()	nut/dev/keys.c

Global Variable key_evt

HANDLE key_evt

Visible in:		nut/dev/keys.c
Used in:	NutRegisterKey()	nut/dev/keys.c

Local Variables

first_key
static KEYEventT* first_key

Used in:	NutRegisterKey()
	sys_key()

Global Function InitKEY()

int InitKEY ( KEYEventT* key )

Calls:	GpioPinConfigSet()	nut/arch/m68k/coldfire/dev/mcf5225x/mcf5225x_gpio.c
Called by:	NutRegisterKey()	nut/dev/keys.c

Global Function KeyTimerCb()

void KeyTimerCb ( HANDLE timer, void* arg )

Calls:	NutEventPostAsync()
Used in:	NutRegisterKey()	nut/dev/keys.c

Global Function NutAssignKeyEvt()

int NutAssignKeyEvt ( HANDLE* keyhp, HANDLE* event )

Prototyped in:

nut/include/dev/keys.h

Global Function NutAssignKeyFkt()

int NutAssignKeyFkt ( HANDLE* keyhp, void (*callback)(void) )

Prototyped in:

nut/include/dev/keys.h

Global Function NutGetKeyState()

int NutGetKeyState ( HANDLE* keyhp )

Prototyped in:

nut/include/dev/keys.h

Global Function NutGetKeyTime()

int NutGetKeyTime ( HANDLE* keyhp )

Prototyped in:	nut/include/dev/keys.h
Calls:	NutGetMillis()

Global Function NutRegisterKey()

int NutRegisterKey ( HANDLE* keyhp, int bank, int pin, int fx, uint32_t fxt )

Prototyped in:	nut/include/dev/keys.h
Calls:	InitKEY()	nut/dev/keys.c
	NutThreadCreate()	nut/arch/cm3/os/context.c
	malloc()	nut/crt/malloc.c
	NutTimerStart()
References Functions:	KeyTimerCb()	nut/dev/keys.c
	sys_key()	nut/dev/keys.c
References Variables:	first_key	nut/dev/keys.c
	key_evt	nut/dev/keys.c
	key_tmr	nut/dev/keys.c

Global Function sys_key()

void sys_key ( void* arg )

Prototyped in:	nut/dev/keys.c
Calls:	GpioPinGet()	nut/arch/avr/dev/gpio_avr.c
	NutEventPost(), NutEventWait(), NutGetMillis(), NutThreadSetPriority()
Used in:	NutRegisterKey()	nut/dev/keys.c
References Variables:	first_key	nut/dev/keys.c