qmk

QMK Firmware
git clone git://git.z3bra.org/qmk.git
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split_util.c (1405B)


      1 #include <avr/io.h>
      2 #include <avr/wdt.h>
      3 #include <avr/power.h>
      4 #include <avr/interrupt.h>
      5 #include <util/delay.h>
      6 #include <avr/eeprom.h>
      7 #include "split_util.h"
      8 #include "matrix.h"
      9 #include "keyboard.h"
     10 
     11 #ifdef USE_MATRIX_I2C
     12 #  include "i2c.h"
     13 #else
     14 #  include "split_scomm.h"
     15 #endif
     16 
     17 volatile bool isLeftHand = true;
     18 
     19 static void setup_handedness(void) {
     20   #ifdef EE_HANDS
     21     isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
     22   #else
     23     // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
     24     #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
     25       isLeftHand = !has_usb();
     26     #else
     27       isLeftHand = has_usb();
     28     #endif
     29   #endif
     30 }
     31 
     32 static void keyboard_master_setup(void) {
     33 
     34 #ifdef USE_MATRIX_I2C
     35     i2c_master_init();
     36 #else
     37     serial_master_init();
     38 #endif
     39 }
     40 
     41 static void keyboard_slave_setup(void) {
     42 
     43 #ifdef USE_MATRIX_I2C
     44     i2c_slave_init(SLAVE_I2C_ADDRESS);
     45 #else
     46     serial_slave_init();
     47 #endif
     48 }
     49 
     50 bool has_usb(void) {
     51    USBCON |= (1 << OTGPADE); //enables VBUS pad
     52    _delay_us(5);
     53    return (USBSTA & (1<<VBUS));  //checks state of VBUS
     54 }
     55 
     56 void split_keyboard_setup(void) {
     57    setup_handedness();
     58 
     59    if (has_usb()) {
     60       keyboard_master_setup();
     61    } else {
     62       keyboard_slave_setup();
     63    }
     64    sei();
     65 }
     66 
     67 // this code runs before the usb and keyboard is initialized
     68 void matrix_setup(void) {
     69     split_keyboard_setup();
     70 }