summaryrefslogtreecommitdiff
path: root/keyboards/ergoinu/split_util.c
blob: 0cbc2c69c46a8e9b917369cf28f361292b010b36 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
#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();
}