81 lines
1.4 KiB
C
81 lines
1.4 KiB
C
#include <avr/io.h>
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#include <avr/wdt.h>
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#include <avr/power.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <avr/eeprom.h>
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#include "split_util.h"
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#include "matrix.h"
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#include "keyboard.h"
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#include "config.h"
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#include "timer.h"
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#include "pincontrol.h"
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#ifdef USE_I2C
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# include "i2c.h"
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#else
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# include "serial.h"
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#endif
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volatile bool isLeftHand = true;
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static void setup_handedness(void) {
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// Test D2 pin for handedness, if D2 is grounded, it's the right hand
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pinMode(D2, PinDirectionInput);
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isLeftHand = digitalRead(D2);
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}
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static void keyboard_master_setup(void) {
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#ifdef USE_I2C
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i2c_master_init();
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#ifdef SSD1306OLED
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matrix_master_OLED_init();
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#endif
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#else
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serial_master_init();
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#endif
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}
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static void keyboard_slave_setup(void) {
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timer_init();
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#ifdef USE_I2C
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i2c_slave_init(SLAVE_I2C_ADDRESS);
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#else
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serial_slave_init();
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#endif
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}
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bool has_usb(void) {
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USBCON |= (1 << OTGPADE); //enables VBUS pad
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_delay_us(5);
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return (USBSTA & (1<<VBUS)); //checks state of VBUS
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}
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void split_keyboard_setup(void) {
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setup_handedness();
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if (has_usb()) {
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keyboard_master_setup();
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} else {
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keyboard_slave_setup();
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}
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sei();
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}
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void keyboard_slave_loop(void) {
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matrix_init();
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while (1) {
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matrix_slave_scan();
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}
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}
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// this code runs before the usb and keyboard is initialized
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void matrix_setup(void) {
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split_keyboard_setup();
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if (!has_usb()) {
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keyboard_slave_loop();
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}
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}
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