unsigned char wayplay_1_read(void)
{
if (pad_index < 4)
{
return gamepad_read(pad_index);
}
/* multitap detection */
return 0x70;
}
unsigned char wayplay_1_read(void)
{
/* check if TH on port B is HIGH */
if (latch & 0x04)
{
/* 4-WayPlay detection : xxxxx00 */
return 0x7C;
}
/* TR & TL on port B select controller # (0-3) */
return gamepad_read(latch);
}
unsigned char gamepad_2_read(void)
{
return gamepad_read(4);
}
unsigned char gamepad_1_read(void)
{
return gamepad_read(0);
}
int main()
{
// set for 16 MHz clock
CPU_PRESCALE(0);
// Configure all port B and port D pins as inputs with pullup resistors.
DDRD = 0x00;
DDRB = 0x00;
PORTB = 0xFF;
PORTD = 0xFF;
// Turn the LED on during the configuration
LED_CONFIG;
LED_ON;
// Initialize the USB, and then wait for the host to set configuration.
usb_init();
while (!usb_configured());
// Initialize the gamepad interface
gamepad_init();
// Wait an extra second for the PC's operating system to load drivers
// and do whatever it does to actually be ready for input
_delay_ms(1000);
// Timer 0 configuration (~60Hz)
TCCR0A = 0x00; // Normal mode
TCCR0B = 0x05; // Clock/1024
TIMSK0 = (1<<TOIE0);
LED_OFF;
while (1) {
while (!ready); // Block until the next cycle (~60Hz)
cli();
ready = 0;
sei();
// Read pressed buttons from gamepad interface
gamepad_read();
// Reset key array
reset_keys();
// Special functions
// - Software reboot
if (PRESSED_REBOOT) {
reboot();
}
// 6 keys can be sent at a time, with any number of modifiers.
//
// - Buttons A, B, X and Y have their own position in the key array.
// - Up/down and left/right pairs share one position, as they are
// mutually exclusive (you cannot pres up AND down).
// - L and R use the left and right Shift modifiers.
// - Select and Start use the left and right Ctrl modifiers.
if (PRESSED_A) press_key(KEY_Z, 0);
if (PRESSED_B) press_key(KEY_X, 1);
if (PRESSED_X) press_key(KEY_A, 2);
if (PRESSED_Y) press_key(KEY_S, 3);
if (PRESSED_UP) {
press_key(KEY_UP, 4);
} else if (PRESSED_DOWN){
press_key(KEY_DOWN, 4);
}
if (PRESSED_LEFT) {
press_key(KEY_LEFT, 5);
} else if (PRESSED_RIGHT){
press_key(KEY_RIGHT, 5);
}
if (PRESSED_L) press_modifier(KEY_LEFT_SHIFT);
if (PRESSED_R) press_modifier(KEY_RIGHT_SHIFT);
if (PRESSED_SELECT) press_modifier(KEY_LEFT_CTRL);
if (PRESSED_START) press_modifier(KEY_RIGHT_CTRL);
usb_keyboard_send();
}
}
