static void start_rx(hw_rx_cfg_t const* rx_cfg)
{
DPRINT("start_rx");
if (current_state == HW_RADIO_STATE_OFF)
ezradio_hal_DeassertShutdown();
current_state = HW_RADIO_STATE_RX;
configure_channel(&(rx_cfg->channel_id));
configure_syncword_class(rx_cfg->syncword_class, rx_cfg->channel_id.channel_header.ch_coding);
rx_fifo_data_lenght = 0;
if (rx_cfg->channel_id.channel_header.ch_coding == PHY_CODING_FEC_PN9)
{
ezradioStartRx(ez_channel_id, false);
} else {
ezradioStartRx(ez_channel_id, true);
}
DEBUG_RX_START();
if(rssi_valid_callback != 0)
{
// TODO calculate/predict rssi response time and wait until valid. For now we wait 200 us.
hw_busy_wait(200);
rssi_valid_callback(hw_radio_get_rssi());
}
}
error_t hw_radio_init(alloc_packet_callback_t alloc_packet_cb,
release_packet_callback_t release_packet_cb)
{
alloc_packet_callback = alloc_packet_cb;
release_packet_callback = release_packet_cb;
current_state = HW_RADIO_STATE_IDLE;
cc1101_interface_init(&end_of_packet_isr);
cc1101_interface_reset_radio_core();
cc1101_interface_write_rfsettings(&rf_settings);
DPRINT("RF settings:");
uint8_t* p = (uint8_t*) &rf_settings;
uint8_t i;
for(i = 0; i < sizeof(RF_SETTINGS); i++)
{
DPRINT("\t0x%02X", p[i]);
}
// configure default channel, eirp and syncword
configure_channel(¤t_channel_id);
configure_eirp(current_eirp);
configure_syncword_class(current_syncword_class);
}
static void start_rx(hw_rx_cfg_t const* rx_cfg)
{
DPRINT("start_rx");
if (current_state == HW_RADIO_STATE_OFF)
ezradio_hal_DeassertShutdown();
current_state = HW_RADIO_STATE_RX;
configure_channel(&(rx_cfg->channel_id));
configure_syncword_class(rx_cfg->syncword_class, rx_cfg->channel_id.channel_header.ch_coding);
rx_fifo_data_lenght = 0;
if (rx_cfg->channel_id.channel_header.ch_coding == PHY_CODING_FEC_PN9)
{
ezradioStartRx(ez_channel_id, false);
} else {
ezradioStartRx(ez_channel_id, true);
}
DEBUG_RX_START();
if(rssi_valid_callback != 0)
{
timer_post_task_delay(&report_rssi, TIMER_TICKS_PER_SEC / 5000);
}
}
error_t hw_radio_send_packet(hw_radio_packet_t* packet, tx_packet_callback_t tx_cb, uint16_t eta, uint8_t dll_header_bg_frame[2])
{
assert(eta == 0); // advertising not implemented on si4460 for now
// TODO error handling EINVAL, ESIZE, EOFF
if(current_state == HW_RADIO_STATE_TX)
return EBUSY;
uint8_t data_length = packet->length + 1;
if (packet->tx_meta.tx_cfg.channel_id.channel_header.ch_coding == PHY_CODING_FEC_PN9)
{
DPRINT("Original packet: %d", data_length);
DPRINT_DATA(packet->data, data_length);
data_length = fec_encode(packet->data, data_length);
DPRINT("Encoded packet: %d", data_length);
DPRINT_DATA(packet->data, data_length);
} else {
if (has_hardware_crc)
data_length -= 2;
}
tx_packet_callback = tx_cb;
if(current_state == HW_RADIO_STATE_RX)
{
//pending_rx_cfg.channel_id = current_channel_id;
//pending_rx_cfg.syncword_class = current_syncword_class;
should_rx_after_tx_completed = true;
}
current_state = HW_RADIO_STATE_TX;
current_packet = packet;
DPRINT("Data to TX Fifo:");
DPRINT_DATA(packet->data, data_length);
DPRINT("TX ch header=%x, ind=%i",
packet->tx_meta.tx_cfg.channel_id.channel_header_raw,
packet->tx_meta.tx_cfg.channel_id.center_freq_index);
configure_channel((channel_id_t*)&(packet->tx_meta.tx_cfg.channel_id));
configure_eirp(packet->tx_meta.tx_cfg.eirp);
configure_syncword_class(current_packet->tx_meta.tx_cfg.syncword_class, current_packet->tx_meta.tx_cfg.channel_id.channel_header.ch_coding);
DEBUG_TX_START();
DEBUG_RX_END();
ezradioStartTx(packet, ez_channel_id, should_rx_after_tx_completed, data_length);
return SUCCESS;
}
error_t hw_radio_send_packet(hw_radio_packet_t* packet, tx_packet_callback_t tx_cb)
{
// TODO error handling EINVAL, ESIZE, EOFF
if(current_state == HW_RADIO_STATE_TX)
return EBUSY;
uint8_t data_length = packet->length + 1;
if (packet->tx_meta.tx_cfg.channel_id.channel_header.ch_coding == PHY_CODING_FEC_PN9)
{
DPRINT(LOG_STACK_PHY, "Original packet: %d", data_length);
DPRINT_DATA(packet->data, data_length);
data_length = fec_encode(packet->data, data_length);
DPRINT(LOG_STACK_PHY, "Encoded packet: %d", data_length);
DPRINT_DATA(packet->data, data_length);
} else {
if (has_hardware_crc)
data_length -= 2;
}
tx_packet_callback = tx_cb;
if(current_state == HW_RADIO_STATE_RX)
{
//pending_rx_cfg.channel_id = current_channel_id;
//pending_rx_cfg.syncword_class = current_syncword_class;
should_rx_after_tx_completed = true;
}
current_state = HW_RADIO_STATE_TX;
current_packet = packet;
DPRINT(LOG_STACK_PHY, "Data to TX Fifo:");
DPRINT_DATA(packet->data, data_length);
configure_channel((channel_id_t*)&(packet->tx_meta.tx_cfg.channel_id));
configure_eirp(packet->tx_meta.tx_cfg.eirp);
configure_syncword_class(current_packet->tx_meta.tx_cfg.syncword_class, current_packet->tx_meta.tx_cfg.channel_id.channel_header.ch_coding);
DEBUG_TX_START();
DEBUG_RX_END();
ezradioStartTx(packet, ez_channel_id, should_rx_after_tx_completed, data_length);
return SUCCESS;
}
error_t hw_radio_init(alloc_packet_callback_t alloc_packet_cb,
release_packet_callback_t release_packet_cb)
{
/* EZRadio response structure union */
ezradio_cmd_reply_t ezradioReply;
alloc_packet_callback = alloc_packet_cb;
release_packet_callback = release_packet_cb;
current_state = HW_RADIO_STATE_UNKOWN;
/* Initialize EZRadio device. */
DPRINT("INIT ezradioInit");
ezradioInit(&ezradio_int_callback);
/* Print EZRadio device number. */
DPRINT("INIT ezradio_part_info");
ezradio_part_info(&ezradioReply);
DPRINT(" Device: Si%04x\n\n", ezradioReply.PART_INFO.PART);
/* Enable Packet Trace Interface */
//ezradio_set_property(RADIO_CONFIG_SET_PROPERTY_PTI_ENABLE);
/* Fix registers not correct set by radio configurator */
// latch on sync word detect - currently no threshold comparison (todo: optimize)
//ezradio_set_property(RADIO_CONFIG_SET_PROPERTY_MODEM_RSSI_CONTROL);
// disable jump detection (todo: optimize)
//ezradio_set_property(RADIO_CONFIG_SET_PROPERTY_MODEM_RSSI_CONTROL2);
/* Reset radio fifos. */
DPRINT("INIT ezradioResetTRxFifo");
ezradioResetTRxFifo();
// configure default channel, eirp and syncword
configure_channel(¤t_channel_id);
configure_eirp(current_eirp);
configure_syncword_class(current_rx_cfg.syncword_class, current_channel_id.channel_header.ch_coding);
sched_register_task((&report_rssi));
switch_to_idle_mode();
}
static void start_rx(hw_rx_cfg_t const* rx_cfg)
{
current_state = HW_RADIO_STATE_RX;
cc1101_interface_strobe(RF_SFRX);
configure_channel(&(rx_cfg->channel_id));
configure_syncword_class(rx_cfg->syncword_class);
cc1101_interface_write_single_reg(PKTLEN, 0xFF);
if(rx_packet_callback != 0) // when rx callback not set we ignore received packets
cc1101_interface_set_interrupts_enabled(true);
cc1101_interface_strobe(RF_SRX);
if(rssi_valid_callback != 0)
{
// TODO calculate/predict rssi response time (see DN505)
// and wait until valid. For now we wait 200 us.
hw_busy_wait(200);
rssi_valid_callback(hw_radio_get_rssi());
}
}
error_t hw_radio_send_packet(hw_radio_packet_t* packet, tx_packet_callback_t tx_cb)
{
// TODO error handling EINVAL, ESIZE, EOFF
if(current_state == HW_RADIO_STATE_TX)
return EBUSY;
assert(packet->length < 63); // long packets not yet supported
tx_packet_callback = tx_cb;
if(current_state == HW_RADIO_STATE_RX)
{
pending_rx_cfg.channel_id = current_channel_id;
pending_rx_cfg.syncword_class = current_syncword_class;
should_rx_after_tx_completed = true;
}
current_state = HW_RADIO_STATE_TX;
current_packet = packet;
cc1101_interface_strobe(RF_SIDLE);
cc1101_interface_strobe(RF_SFTX);
#ifdef FRAMEWORK_LOG_ENABLED // TODO more granular
log_print_stack_string(LOG_STACK_PHY, "Data to TX Fifo:");
log_print_data(packet->data, packet->length + 1);
#endif
configure_channel((channel_id_t*)&(current_packet->tx_meta.tx_cfg.channel_id));
configure_eirp(current_packet->tx_meta.tx_cfg.eirp);
configure_syncword_class(current_packet->tx_meta.tx_cfg.syncword_class);
cc1101_interface_write_burst_reg(TXFIFO, packet->data, packet->length + 1);
cc1101_interface_set_interrupts_enabled(true);
cc1101_interface_strobe(RF_STX);
return SUCCESS;
}
