87 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			87 lines
		
	
	
		
			1.6 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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| 
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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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| 
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| volatile bool isLeftHand = true;
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| 
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| static void setup_handedness(void) {
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|   #ifdef EE_HANDS
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|     isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
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|   #else
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|     // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
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|     #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
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|       isLeftHand = !has_usb();
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|     #else
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|       isLeftHand = has_usb();
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|     #endif
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|   #endif
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| }
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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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| 
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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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| 
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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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| 
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| void split_keyboard_setup(void) {
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|    setup_handedness();
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| 
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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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| 
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| void keyboard_slave_loop(void) {
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|    matrix_init();
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| 
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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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| 
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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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| 
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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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