/**
 * Example code for using a microchip mrf24j40 module to send and receive
 * packets using plain 802.15.4
 * Requirements: 3 pins for spi, 3 pins for reset, chip select and interrupt
 * notifications
 * This example file is considered to be in the public domain
 * Originally written by Karl Palsson, karlp@tweak.net.au, March 2011
 */


#include <avr/io.h>
#include <avr/interrupt.h>
#include "../../lib/mrf24j.h"
#include "../../lib/usart.h"
#include "../../lib/spi.h"

const int pin_reset = 5;
const int pin_cs = 10; // default CS pin on ATmega8/168/328
const int pin_interrupt = 2; // default interrupt pin on ATmega8/168/328

Mrf24j mrf;

void handle_rx();
void handle_tx();


int main() {
  usart::init(50000);
  spi::init();
  //s.init();
  mrf.reset();
  mrf.init();
  
  mrf.set_pan(0xcafe);
  // This is _our_ address
  mrf.address16_write(0x4202); 

  // uncomment if you want to receive any packet on this channel
  //mrf.set_promiscuous(true);
  
  // uncomment if you want to enable PA/LNA external control
  //mrf.set_palna(true);
  
  // uncomment if you want to buffer all PHY Payload
  //mrf.set_bufferPHY(true);

  MCUCSR |= (1<<ISC00); // INT2 falling edge
  GICR |= (1<<INT0);

  sei();
  DDRA |= (1<<PA0);

  while(1) {
      mrf.check_flags(&handle_rx, &handle_tx);
  }
  return 0;
}


ISR(INT0_vect) {
    mrf.interrupt_handler(); // mrf24 object interrupt routine
}


void handle_rx() {
    PORTA |= (1<<PA0);
    printf("Received a packet %i bytes long\n\n", mrf.get_rxinfo()->frame_length);
    
    printf("\r\nASCII data (relevant data):\n");
    for (int i = 0; i < mrf.rx_datalength(); i++) {
        printf("%c", mrf.get_rxinfo()->rx_data[i]);
    }
    printf("\n\n");
    // Serial.print("\r\nLQI/RSSI=");
    // Serial.print(mrf.get_rxinfo()->lqi, DEC);
    // Serial.print("/");
    // Serial.println(mrf.get_rxinfo()->rssi, DEC);
    PORTA &= ~(1<<PA0);
}

void handle_tx() {
    
}