/*******************************************************************************
* @fn uint8_t send_sync_message()
* @brief TODO
* ****************************************************************************/
uint8_t send_sync_message()
{
// Send sync message
radio_tx( tx_buffer, sizeof(packet_header_t) );
led2_toggle();
return 1;
}
uint8_t radio_cmd (void) {
uint16_t delay_count=0;
uint8_t retry=10;
rf_ack=0;
while (retry && !rf_ack) {
if (delay_count==0) {
radio_tx(cmd);
//cons_puts("Sending cmd\r\n");
delay_count=5000;
retry--;
}
delay_count--;
radio_tick();
}
if (retry) {
return 1;
} else {
cons_putc(1);
return 0;
}
}
void radio_received(__xdata uint8_t *inpkt)
{
uint8_t i;
uint8_t local_seq = 0x00;
__xdata uint8_t *txpkt = NULL;
// make a copy as the radio buffer is volatile, is this neccessary?
memcpy(tmpbuf, inpkt, inpkt[0]+1);
timer_delayMS(MAC_TURNAROUND_DELAY_MS); // give other end time to turnaround
// check header length
if (tmpbuf[0] < 9) // type + eui64
return;
//cons_puts("****************** radio_rx:");
//cons_dump(inpkt, inpkt[0]+1);
if (tmpbuf[1] & MAC_TYPE_POLLACK) // this packet is a response from another hub, drop it
return;
// find a stored packet for poller
if (tmpbuf[1] & MAC_TYPE_POLL) // type field
{
// find a stored packet for poller
//BOOLEAN allEmpty = TRUE;
for (i=0;i<NUM_SLOTS;i++)
{
if (slottbl[i].length > 0) // non-empty
{
//allEmpty = FALSE;
if (0==memcmp(slottbl[i].dst_eui64, tmpbuf+2, 8)) // do we have a packet for poller?
{
//cons_puts("Got pkt for poller\r\n");
slottbl[i].poll_seq = tmpbuf[10]; // echo back the poller's sequence number
txpkt = &(slottbl[i].length);
local_seq = slottbl[i].local_seq;
break;
}
else
{
//cons_puts("No pkt for poller\r\n");
}
}
}
//if (allEmpty)
// cons_puts("********** ALL SLOTS EMPTY\r\n");
}
else
{
//cons_puts("******** NOT A POLL!\r\n");
}
#ifdef SEND_EMPTY_PACKET
// it's a poll, but we have no data pending
if (tmpbuf[1] & MAC_TYPE_POLL && (txpkt == NULL))
{ // ready the empty packet
txpkt = emptypkt;
txpkt[0] = 11;
txpkt[1] = MAC_TYPE_POLLACK | MAC_TYPE_PLAINTEXT; // type
memcpy(txpkt+2, tmpbuf+2, 8); // node's eui64
txpkt[10] = tmpbuf[10]; // echo back the poller's sequence number
txpkt[11] = 0; // empty payload
}
#endif
if (txpkt != NULL && txpkt[0] != 0) // if there's something to send
{
radio_tx(txpkt);
//cons_puts("RADIOTX: ");
//cons_dump(txpkt, txpkt[0]+1);
while(!radio_txComplete()); // spin until sent
if (txpkt != emptypkt) // not sent empty packet
{
mac_tx_cb(txpkt+2, txpkt + 11, TRUE, local_seq); // callback to user
txpkt[0] = 0; // mark this slot as empty (slottbl[i].length=0)
}
}
if (*(tmpbuf+11) > 0) // empty poll is an empty packet
mac_rx_cb(tmpbuf+2, tmpbuf+11, tmpbuf[1] & MAC_TYPE_ENCRYPTED); // tell user about packet received
}
