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sd: respect connection parameter update request from peripheral #456

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18 changes: 10 additions & 8 deletions adapter_nrf528xx-full.go
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Original file line number Diff line number Diff line change
Expand Up @@ -96,14 +96,16 @@ func handleEvent() {
// report has been processed.
gotScanReport.Set(1)
case C.BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
// Respond with the default PPCP connection parameters by passing
// nil:
// > If NULL is provided on a peripheral role, the parameters in the
// > PPCP characteristic of the GAP service will be used instead. If
// > NULL is provided on a central role and in response to a
// > BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST, the peripheral request
// > will be rejected
C.sd_ble_gap_conn_param_update(gapEvent.conn_handle, nil)
request := gapEvent.params.unionfield_conn_param_update_request()
if debug {
interval_min_ms := request.conn_params.min_conn_interval * 125 / 100
interval_max_ms := request.conn_params.max_conn_interval * 125 / 100
timeout_ms := request.conn_params.conn_sup_timeout * 10
print("evt: gap connection param update request min=", interval_min_ms, "ms max=", interval_max_ms, "ms latency=", request.conn_params.slave_latency, " timeout=", timeout_ms, "ms\r\n")
}
// Accept the requested connection parameter update (some
// peripherals don't like it when their requests get rejected).
C.sd_ble_gap_conn_param_update(gapEvent.conn_handle, &request.conn_params)
case C.BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
// We need to respond with sd_ble_gap_data_length_update. Setting
// both parameters to nil will make sure we send the default values.
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