void ser_conn_hal_transport_event_handle(ser_hal_transport_evt_t event)
{
switch (event.evt_type)
{
case SER_HAL_TRANSP_EVT_TX_PKT_SENT:
{
/* SoftDevice event or response to received packet was sent, so unblock the application
* scheduler to process a next event. */
app_sched_resume();
/* Check if chip is ready to enter DTM mode. */
ser_conn_is_ready_to_enter_dtm();
break;
}
case SER_HAL_TRANSP_EVT_RX_PKT_RECEIVING:
{
/* The connectivity side has started receiving a packet. Temporary block processing
* SoftDevice events. It is going to be unblocked when a response for the packet will
* be sent. This prevents communication block. */
app_sched_pause();
break;
}
case SER_HAL_TRANSP_EVT_RX_PKT_RECEIVED:
{
/* We can NOT add received packets as events to the application scheduler queue because
* received packets have to be processed before SoftDevice events but the scheduler
* queue do not have priorities. */
memcpy(&m_rx_pkt_received_params, &event.evt_params.rx_pkt_received,
sizeof (ser_hal_transport_evt_rx_pkt_received_params_t));
m_rx_pkt_to_process = true;
break;
}
case SER_HAL_TRANSP_EVT_RX_PKT_DROPPED:
{
APP_ERROR_CHECK(SER_WARNING_CODE);
break;
}
case SER_HAL_TRANSP_EVT_PHY_ERROR:
{
APP_ERROR_CHECK(NRF_ERROR_FORBIDDEN);
break;
}
default:
{
/* do nothing */
break;
}
}
}
void ser_conn_ble_event_encoder(void * p_event_data, uint16_t event_size)
{
if (NULL == p_event_data)
{
APP_ERROR_CHECK(NRF_ERROR_NULL);
}
UNUSED_PARAMETER(event_size);
uint32_t err_code = NRF_SUCCESS;
uint8_t * p_tx_buf = NULL;
uint32_t tx_buf_len = 0;
ble_evt_t * p_ble_evt = (ble_evt_t *)p_event_data;
/* Allocate a memory buffer from HAL Transport layer for transmitting an event.
* Loop until a buffer is available. */
do
{
err_code = ser_hal_transport_tx_pkt_alloc(&p_tx_buf, (uint16_t *)&tx_buf_len);
}
while (err_code == NRF_ERROR_NO_MEM);
APP_ERROR_CHECK(err_code);
/* Create a new packet. */
p_tx_buf[SER_PKT_TYPE_POS] = SER_PKT_TYPE_EVT;
tx_buf_len -= SER_PKT_TYPE_SIZE;
/* Pass a memory for an event (opcode + data) and encode it. */
err_code = ble_event_enc(p_ble_evt, 0, &p_tx_buf[SER_PKT_OP_CODE_POS], &tx_buf_len);
if (NRF_ERROR_NOT_SUPPORTED != err_code)
{
APP_ERROR_CHECK(err_code);
tx_buf_len += SER_PKT_TYPE_SIZE;
err_code = ser_hal_transport_tx_pkt_send(p_tx_buf, (uint16_t)tx_buf_len);
APP_ERROR_CHECK(err_code);
/* TX buffer is going to be freed automatically in the HAL Transport layer.
* Scheduler must be paused because this function returns before a packet is physically sent
* by transport layer. This can cause start processing of a next event from the application
* scheduler queue. In result the next event reserves the TX buffer before the current
* packet is sent. If in meantime a command arrives a command response cannot be sent in
* result. Pausing the scheduler temporary prevents processing a next event. */
app_sched_pause();
}
else
{
/* Event was NOT encoded, therefore the buffer is freed immediately. */
err_code = ser_hal_transport_tx_pkt_free(p_tx_buf);
APP_ERROR_CHECK(err_code);
APP_ERROR_CHECK(SER_WARNING_CODE);
}
}