/*
* @brief Get the current long address of transceiver device
*
* @param t The transceiver device
*
* @return The configured long address of the device, 0 on error
*/
static transceiver_eui64_t get_long_addr(transceiver_type_t t)
{
switch (t) {
#ifdef MODULE_CC2420
case TRANSCEIVER_CC2420:
return cc2420_get_address_long();
#endif
#ifdef MODULE_AT86RF231
case TRANSCEIVER_AT86RF231:
return at86rf231_get_address_long();
#endif
default:
return 0;
}
}
radio_tx_status_t cc2420_load_tx_buf(ieee802154_packet_kind_t kind,
ieee802154_node_addr_t dest,
bool use_long_addr,
bool wants_ack,
void *buf,
unsigned int len)
{
uint8_t hdr[24];
/* FCS : frame version 0, we don't manage security,
nor batchs of packets */
switch (kind) {
case PACKET_KIND_BEACON:
hdr[0] = 0x00;
break;
case PACKET_KIND_DATA:
hdr[0] = 0x01;
break;
case PACKET_KIND_ACK:
hdr[0] = 0x02;
break;
default:
return RADIO_TX_INVALID_PARAM;
}
if (wants_ack) {
hdr[0] |= 0x20;
}
wait_for_ack = wants_ack;
uint16_t src_pan = cc2420_get_pan();
bool compress_pan = false;
if (use_long_addr) {
hdr[1] = 0xcc;
} else {
hdr[1] = 0x88;
/* short address mode, use PAN ID compression
for intra-PAN communication */
if (dest.pan.id == src_pan) {
compress_pan = true;
hdr[0] |= 0x40;
}
}
/* sequence number */
hdr[2] = sequenz_nr++;
/* variable-length fields */
int idx = 3;
if (use_long_addr) {
/* dest long addr */
hdr[idx++] = (uint8_t)(dest.long_addr & 0xFF);
hdr[idx++] = (uint8_t)(dest.long_addr >> 8);
hdr[idx++] = (uint8_t)(dest.long_addr >> 16);
hdr[idx++] = (uint8_t)(dest.long_addr >> 24);
hdr[idx++] = (uint8_t)(dest.long_addr >> 32);
hdr[idx++] = (uint8_t)(dest.long_addr >> 40);
hdr[idx++] = (uint8_t)(dest.long_addr >> 48);
hdr[idx++] = (uint8_t)(dest.long_addr >> 56);
/* src long addr */
uint64_t src_long_addr = cc2420_get_address_long();
hdr[idx++] = (uint8_t)(src_long_addr & 0xFF);
hdr[idx++] = (uint8_t)(src_long_addr >> 8);
hdr[idx++] = (uint8_t)(src_long_addr >> 16);
hdr[idx++] = (uint8_t)(src_long_addr >> 24);
hdr[idx++] = (uint8_t)(src_long_addr >> 32);
hdr[idx++] = (uint8_t)(src_long_addr >> 40);
hdr[idx++] = (uint8_t)(src_long_addr >> 48);
hdr[idx++] = (uint8_t)(src_long_addr >> 56);
} else {
