int16_t hw_radio_get_rssi()
{
ezradio_cmd_reply_t ezradioReply;
ezradio_get_modem_status(0, &ezradioReply);
DPRINT("CURR_RSSI %d %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.CURR_RSSI), ezradioReply.GET_MODEM_STATUS.CURR_RSSI);
//DPRINT("LATCH_RSSI %d %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.LATCH_RSSI), ezradioReply.GET_MODEM_STATUS.LATCH_RSSI);
//DPRINT("ANT1_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.ANT1_RSSI));
//DPRINT("ANT2_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.ANT2_RSSI));
int16_t rss = convert_rssi(ezradioReply.GET_MODEM_STATUS.CURR_RSSI);
return rss;
}
int16_t hw_radio_get_latched_rssi()
{
ezradio_cmd_reply_t ezradioReply;
//ezradio_get_modem_status(0, &ezradioReply);
//return convert_rssi(ezradioReply.GET_MODEM_STATUS.LATCH_RSSI);
ezradio_frr_d_read(1, &ezradioReply);
return convert_rssi(ezradioReply.FRR_D_READ.FRR_D_VALUE);
}
int16_t hw_radio_get_rssi()
{
ezradio_cmd_reply_t ezradioReply;
ezradio_get_modem_status(0, &ezradioReply);
//return -120;
// DPRINT("CURR_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.CURR_RSSI));
// DPRINT("LATCH_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.LATCH_RSSI));
// DPRINT("ANT1_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.ANT1_RSSI));
// DPRINT("ANT2_RSSI %d", convert_rssi(ezradioReply.GET_MODEM_STATUS.ANT2_RSSI));
// ezradio_frr_d_read(1, &ezradioReply);
// DPRINT("FRR_D_VALUE %d", convert_rssi(ezradioReply.FRR_D_READ.FRR_D_VALUE));
uint8_t rss = ezradioReply.GET_MODEM_STATUS.CURR_RSSI > ezradioReply.GET_MODEM_STATUS.LATCH_RSSI ? ezradioReply.GET_MODEM_STATUS.CURR_RSSI : ezradioReply.GET_MODEM_STATUS.LATCH_RSSI;
return convert_rssi(rss);
}
int16_t hw_radio_get_rssi()
{
return convert_rssi(cc1101_interface_read_single_reg(RSSI));
}
static void end_of_packet_isr()
{
cc1101_interface_set_interrupts_enabled(false);
DPRINT("end of packet ISR");
switch(current_state)
{
case HW_RADIO_STATE_RX: ;
uint8_t packet_len = cc1101_interface_read_single_reg(RXFIFO);
DPRINT("EOP ISR packetLength: %d", packet_len);
if(packet_len >= 63)
{
// long packets not yet supported or bit error in length byte, don't assert but flush rx
DPRINT("Packet size too big, flushing RX");
uint8_t status = (cc1101_interface_strobe(RF_SNOP) & 0xF0);
if(status == 0x60)
{
// RX overflow
cc1101_interface_strobe(RF_SFRX);
}
else if(status == 0x10)
{
// still in RX, switch to idle first
cc1101_interface_strobe(RF_SIDLE);
}
while(cc1101_interface_strobe(RF_SNOP) != 0x0F); // wait until in idle state
cc1101_interface_strobe(RF_SRX);
while(cc1101_interface_strobe(RF_SNOP) != 0x1F); // wait until in RX state
cc1101_interface_set_interrupts_enabled(true);
return;
}
hw_radio_packet_t* packet = alloc_packet_callback(packet_len);
packet->length = packet_len;
cc1101_interface_read_burst_reg(RXFIFO, packet->data + 1, packet->length);
// fill rx_meta
packet->rx_meta.rssi = convert_rssi(cc1101_interface_read_single_reg(RXFIFO));
packet->rx_meta.lqi = cc1101_interface_read_single_reg(RXFIFO) & 0x7F;
memcpy(&(packet->rx_meta.rx_cfg.channel_id), ¤t_channel_id, sizeof(channel_id_t));
packet->rx_meta.crc_status = HW_CRC_UNAVAILABLE; // TODO
packet->rx_meta.timestamp = timer_get_counter_value();
#ifdef FRAMEWORK_LOG_ENABLED
log_print_raw_phy_packet(packet, false);
#endif
rx_packet_callback(packet);
if(current_state == HW_RADIO_STATE_RX) // check still in RX, could be modified by upper layer while in callback
{
uint8_t status = (cc1101_interface_strobe(RF_SNOP) & 0xF0);
if(status == 0x60) // RX overflow
{
cc1101_interface_strobe(RF_SFRX);
while(cc1101_interface_strobe(RF_SNOP) != 0x0F); // wait until in idle state
cc1101_interface_strobe(RF_SRX);
while(cc1101_interface_strobe(RF_SNOP) != 0x1F); // wait until in RX state
}
cc1101_interface_set_interrupts_enabled(true);
assert(cc1101_interface_strobe(RF_SNOP) == 0x1F); // expect to be in RX mode
}
break;
case HW_RADIO_STATE_TX:
if(!should_rx_after_tx_completed)
switch_to_idle_mode();
current_packet->tx_meta.timestamp = timer_get_counter_value();
#ifdef FRAMEWORK_LOG_ENABLED
log_print_raw_phy_packet(current_packet, true);
#endif
if(tx_packet_callback != 0)
tx_packet_callback(current_packet);
if(should_rx_after_tx_completed)
{
// RX requested while still in TX ...
// TODO this could probably be further optimized by not going into IDLE
// after RX by setting TXOFF_MODE to RX (if the cfg is the same at least)
should_rx_after_tx_completed = false;
start_rx(&pending_rx_cfg);
}
break;
default:
assert(false);
}
}
