qmk-firmware/keyboards/crkbd/rev1/split_util.c
marksard 35efcc9f39 Keyboard: Improvement of crkbd communication functions (based on helix-keyboard) (#3798)
* improvement of crkbd communication functions (based on  helix-keyboard)

* Removed unnecessary code.

* Changed read restriction from #define to #pragma once.

* Changed from sizeof to defined size.

* moved lib folder to crkbdroot.
removed warning of ws2812.d
2018-09-03 16:34:16 -07:00

71 lines
1.4 KiB
C

#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"
#ifdef USE_MATRIX_I2C
# include "i2c.h"
#else
# include "split_scomm.h"
#endif
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) {
#ifdef USE_MATRIX_I2C
i2c_master_init();
#else
serial_master_init();
#endif
}
static void keyboard_slave_setup(void) {
#ifdef USE_MATRIX_I2C
i2c_slave_init(SLAVE_I2C_ADDRESS);
#else
serial_slave_init();
#endif
}
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();
}