Merge pull request #6 from paul-szczepanek-arm/feature-support

support for controller features

features/FEATURE_BLE/ble/pal/PalGap.h

@@ -32,6 +32,33 @@ namespace pal {
  * by that layer.
  */
 struct Gap {
+ /** @see BLUETOOTH SPECIFICATION Version 5.0 | Vol 6, Part B - 4.6 */
+ struct ControllerSupportedFeatures_t : SafeEnum<ControllerSupportedFeatures_t, uint8_t> {
+ enum type {
+ LE_ENCRYPTION = 0,
+ CONNECTION_PARAMETERS_REQUEST_PROCEDURE,
+ EXTENDED_REJECT_INDICATION,
+ SLAVE_INITIATED_FEATURES_EXCHANGE,
+ LE_PING,
+ LE_DATA_PACKET_LENGTH_EXTENSION,
+ LL_PRIVACY,
+ EXTENDED_SCANNER_FILTER_POLICIES,
+ LE_2M_PHY,
+ STABLE_MODULATION_INDEX_TRANSMITTER,
+ STABLE_MODULATION_INDEX_RECEIVER,
+ LE_CODED_PHY,
+ LE_EXTENDED_ADVERTISING,
+ LE_PERIODIC_ADVERTISING,
+ CHANNEL_SELECTION_ALGORITHM_2,
+ LE_POWER_CLASS
+ };
+
+ /**
+ * Construct a new instance of ControllerSupportedFeatures_t.
+ */
+ ControllerSupportedFeatures_t(type value) : SafeEnum<ControllerSupportedFeatures_t, uint8_t>(value) { }
+ };
+
  /**
  * Initialisation of the instance. An implementation can use this function
  * to initialise the subsystems needed to realize the operations of this
@@ -670,6 +697,16 @@ struct Gap {
  bool enable
  ) = 0;
 
+ /**
+ * Checked support for a feature in the link controller.
+ *
+ * @param feature feature to be checked.
+ * @return TRUE if feature is supported.
+ */
+ virtual bool is_feature_supported(
+ ControllerSupportedFeatures_t feature
+ ) = 0;
+
  /**
  * Register a callback which will handle Gap events.
  *

features/FEATURE_BLE/source/generic/GenericGap.cpp

@@ -417,6 +417,8 @@ GenericGap::GenericGap(
  _scan_timeout(),
  _connection_event_handler(NULL)
 {
+ _pal_gap.initialize();
+
  _pal_gap.when_gap_event_received(
  mbed::callback(this, &GenericGap::on_gap_event_received)
  );

features/FEATURE_BLE/targets/TARGET_CORDIO/CordioPalGap.h

@@ -13,8 +13,13 @@ namespace cordio {
  * Implementation of ble::pal::Gap for the Cordio stack.
  */
 class Gap : public ::ble::pal::Gap {
-
 public:
+ virtual bool is_feature_supported(
+ Gap::ControllerSupportedFeatures_t feature
+ ) {
+ return (HciGetLeSupFeat() & (1 << feature.value()));
+ }
+
  virtual ble_error_t initialize() {
  return BLE_ERROR_NONE;
  }