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/*
* spreadspace avr utils
*
*
* Copyright (C) 2013-2016 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of spreadspace avr utils.
*
* spreadspace avr utils is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* spreadspace avr utils is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <stdio.h>
#include "util.h"
#include "led.h"
#include "usbio.h"
#include "RadioHead.h"
#include "RH_RF95.h"
#include <Crypto.h>
#include <ChaChaPoly.h>
#include "RHAEADDriver.h"
ChaChaPoly cipher;
RH_RF95 lora;
RHAEADDriver aead(lora, cipher);
void recv_aead_msg()
{
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN+1];
uint8_t len = sizeof(buf)-1;
led2_on();
if(!aead.recv(buf, &len)) {
printf("aead.recv(): failed\r\n");
led2_off();
return;
}
buf[len] = 0;
printf("aead.recv() got message: RSSI = %d, data = ", aead.lastRssi());
for(uint8_t i = 0; i < len; ++i) printf("%s0x%02X", (i==0) ? "" : " ", buf[i]);
printf("\r\n");
// printf("aead.recv() got message: RSSI = %d, data = %s\r\n", aead.lastRssi(), buf);
led2_off();
}
void send_aead_msg()
{
uint8_t data[] = "spreadspace.org/avr-utils usb-aead test using radiohead library";
printf("aead: sending message with %d bytes\r\n", sizeof(data));
led_on();
if(!aead.send(data, sizeof(data))) {
printf("aead.send(): failed\r\n");
led_off();
return;
}
aead.waitPacketSent();
printf("aead.send(): success\r\n");
led_off();
}
void handle_cmd(uint8_t cmd)
{
switch(cmd) {
case 's': send_aead_msg(); break;
default: printf("error\r\n"); return;
}
}
int main(void)
{
MCUSR &= ~(1 << WDRF);
wdt_disable();
cpu_init();
led_init();
usbio_init();
arduino_init();
sei();
lora.init();
lora.setFrequency(868.0);
aead.init();
for(;;) {
if(aead.available()) {
recv_aead_msg();
}
int16_t BytesReceived = usbio_bytes_received();
while(BytesReceived > 0) {
int ReceivedByte = fgetc(stdin);
if(ReceivedByte != EOF) {
handle_cmd(ReceivedByte);
}
BytesReceived--;
}
usbio_task();
}
}
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