MicroMechBoard

//  MasterNotifier.cpp
//  Created by Will Yager on 7/3/13.
//  Copyright (c) 2013 Will Yager. All rights reserved.
//  Tells the master (either USB or I2C) about any key changes we've seen lately

#include "comms/MasterNotifier.h"


MasterNotifier::MasterNotifier(USBCommunicator& usb, I2CCommunicator& i2c):usb_communicator(usb),i2c_communicator(i2c){
    while(!usb_communicator.is_connected() && !i2c_communicator.is_slave()){}
    
    //We are connected via USB
    if (usb_communicator.is_connected()){
        this->is_master = true;
        i2c_communicator.become_master();
    }
    //We are connected via I2C only
    else {
        this->is_master = false;
        usb_communicator.turn_off();
    }
}

//Updates the master about the relevant key changes. Master could be a keyboard over I2C or a computer over USB.
uint8_t MasterNotifier::notify(const KeysDelta& key_changes, const KeysDelta& slave_key_changes){
    uint8_t led_status;
    
    //If we are connected via USB
    if(this->is_master) led_status = this->usb_communicator.update(key_changes, slave_key_changes);
    //If we are only connected via I2C
    else led_status = this->i2c_communicator.update(key_changes);
    
    return led_status;
}