/**
Tx data
*/
static void sm_enter_tx_send(void)
{
bb_advGenericStart();
periph_radio_packet_ptr_set(&ble_adv_data[0]);
radio_setMode(RADIO_MODE_ADV_TX);
}
/*****************************************
* Functions for start/end of WAIT_FOR_IDLE
******************************************/
static void sm_enter_wait_for_idle(bool req_rx_accepted)
{
sm_state = STATE_WAIT_FOR_IDLE;
/* enable disabled interrupt to avoid race conditions */
periph_radio_intenset(RADIO_INTENSET_DISABLED_Msk);
/* different behaviour depending on whether we actually
received a scan request or not */
if (req_rx_accepted)
{
/* need to answer request, set scan_rsp packet and
let radio continue to send */
periph_radio_packet_ptr_set(&ble_scan_rsp_data[0]);
periph_radio_shorts_set(RADIO_SHORTS_READY_START_Msk | RADIO_SHORTS_END_DISABLE_Msk);
/* wait exactly 150us to send response. NOTE: the Reference manual is wrong */
periph_radio_tifs_set(150);
/* send scan req to user space */
scan_req_evt_dispatch();
}
else
{
/* remove shorts and disable radio */
periph_radio_shorts_set(0);
PERIPHERAL_TASK_TRIGGER(NRF_RADIO->TASKS_DISABLE);
}
}
/******************************************
* Functions for start/end of adv_send state
******************************************/
static void sm_enter_adv_send(void)
{
sm_state = STATE_ADV_SEND;
periph_radio_ch_set(channel);
/* trigger task early, the rest of the setup can be done in RXRU */
PERIPHERAL_TASK_TRIGGER(NRF_RADIO->TASKS_TXEN);
periph_radio_packet_ptr_set(&ble_adv_data[0]);
periph_radio_shorts_set( RADIO_SHORTS_READY_START_Msk |
RADIO_SHORTS_END_DISABLE_Msk |
RADIO_SHORTS_DISABLED_RXEN_Msk);
periph_radio_intenset(RADIO_INTENSET_DISABLED_Msk);
}
/******************************************
* Functions for start/end of SCAN_REQ_RSP
******************************************/
static void sm_enter_scan_req_rsp(void)
{
sm_state = STATE_SCAN_REQ_RSP;
periph_radio_packet_ptr_set(&ble_rx_buf[0]);
periph_radio_shorts_set( RADIO_SHORTS_READY_START_Msk |
RADIO_SHORTS_END_DISABLE_Msk |
RADIO_SHORTS_DISABLED_TXEN_Msk |
RADIO_SHORTS_ADDRESS_RSSISTART_Msk);
periph_radio_intenset( RADIO_INTENSET_DISABLED_Msk);
/* change the tifs in order to be able to capture all packets */
periph_radio_tifs_set(148);
/* start the timer that aborts the RX if no address is received. */
periph_timer_start(0, 200, true);
/* set PPI pipe to stop the timer as soon as an address is received */
periph_ppi_set(0, &(NRF_TIMER0->TASKS_STOP), &(NRF_RADIO->EVENTS_ADDRESS));
}
