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- #include <avr/io.h>
- #include <avr/wdt.h>
- #include <avr/power.h>
- #include <avr/interrupt.h>
- #include <util/delay.h>
- #include <avr/eeprom.h>
- #include "split_util.h"
- #include "matrix.h"
- #include "keyboard.h"
-
- #include "serial.h"
-
- volatile bool isLeftHand = true;
-
- static void setup_handedness(void) {
- #ifdef EE_HANDS
- isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
- #else
- // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
- #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
- isLeftHand = !has_usb();
- #else
- isLeftHand = has_usb();
- #endif
- #endif
- }
-
- static void keyboard_master_setup(void) {
- serial_master_init();
- }
-
- static void keyboard_slave_setup(void) {
- serial_slave_init();
- }
-
- bool has_usb(void) {
- USBCON |= (1 << OTGPADE); //enables VBUS pad
- _delay_us(5);
- return (USBSTA & (1<<VBUS)); //checks state of VBUS
- }
-
- void split_keyboard_setup(void) {
- setup_handedness();
-
- if (has_usb()) {
- keyboard_master_setup();
- } else {
- keyboard_slave_setup();
- }
- sei();
- }
-
- // this code runs before the usb and keyboard is initialized
- void matrix_setup(void) {
- split_keyboard_setup();
- }
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