#include "serial.h"

Serial::Serial(ComPort port, BaudRate baud_rate, DataBits data_bits,
               StopBits stop_bits, Parity parity)
    : port(port) {
  // initialize FIFO mode, no irqs for sending, irq if first byte was received

  // line control, select r/w of divisor latch register
  writeReg(LINE_CONTROL_REGISTER, DIVISOR_LATCH_ACCESS_BIT);

  // TODO: Implement here the correct handling of input arguments
  (void)baud_rate;
  (void)data_bits;
  (void)stop_bits;
  (void)parity;

  // FIFO: Enable & clear buffers
  writeReg(FIFO_CONTROL_REGISTER,
           ENABLE_FIFO | CLEAR_RECEIVE_FIFO | CLEAR_TRANSMIT_FIFO);

  // Modem Control: OUT2 (0000 1000) must be set for interrupt
  writeReg(MODEM_CONTROL_REGISTER, OUT_2);
}

void Serial::writeReg(RegisterIndex reg, char out) {
  // TODO: Implement
  (void)reg;
  (void)out;
}

char Serial::readReg(RegisterIndex reg) {
  // TODO: Implement
  (void)reg;
  return '\0';
}

int Serial::write(char out) {
  // TODO: Implement
  (void)out;
  return 0;
}