4-Bit LCD Routine (GCC)

Should any other beginners have the same problem, this code works for me.

CODE

void main(void)
{
lcdsetup();
interruptsetup();
lcddisplay();
while(1);
}

void interruptsetup(void)
{
DDRC=0xff;
DDRD&=~(1<<PIND2);

MCUCR=0x03;
GICR|=(1<<INT0);
sei();
}

void lcdsetup(void)
{
DDRC=0xff;
PORTC=0x00;
DDRA=0xff;

_delay_ms(20);
PORTA=0x30; //Initialization
lcdenable();

_delay_ms(5);
PORTA=0x30; //Initialization
lcdenable();

_delay_ms(1);
PORTA=0x30; //Initialization
lcdenable();

PORTA=0x20; //Initialization
lcdenable();

cntrl=0b00101000;
lcdcontrolsend(cntrl);
cntrl=0b00001000;
lcdcontrolsend(cntrl);
cntrl=0b00001111;
lcdcontrolsend(cntrl);
cntrl=0b00000001;
lcdcontrolsend(cntrl);
cntrl=0b00000110;
lcdcontrolsend(cntrl);
}

void lcdenable(void)
{
PORTA &= ~(1 << PINA2);
PORTA |= (1 << PINA2);
_delay_ms(0.1);
PORTA &= ~(1 << PINA2);
}

void lcddatasend(int data)
{
PORTA |= (1 << PINA3);

_delay_ms(0.07);
PORTA = (PORTA&0x0f)|(data&0xf0);
lcdenable();

_delay_ms(0.07);
PORTA = (PORTA&0x0f)|(data<<4);
lcdenable();
}

void lcdcontrolsend(int control)
{
PORTA &= ~(1<<PINA3);

_delay_ms(0.07);
PORTA = (PORTA&0x0f)|(control&0xf0);
lcdenable();

_delay_ms(0.07);
PORTA = (PORTA&0x0f)|(control<<4);
lcdenable();
}