Merge branch 'bugfix/btdm_iphone10_0_2' into 'master'

Bugfix/btdm iphone10 0 2

This connection error caused by iPhone, it think that TX data length must large than 27 when slave support EXTEND_DATA_LENGTH. But this should be allow. Besides,  the problem cannot be found on higher version of Iphone7, apple seemed to have fixed it.
Actually maybe other BLE device have the same problem.

See merge request !509

components/bt/bluedroid/device/controller.c

@@ -221,6 +221,10 @@ static void start_up(void)
         }
 
         if (HCI_LE_DATA_LEN_EXT_SUPPORTED(features_ble.as_array)) {
+            /* set default tx data length to MAX 251 */
+            response = AWAIT_COMMAND(packet_factory->make_ble_write_suggested_default_data_length(BTM_BLE_DATA_SIZE_MAX, BTM_BLE_DATA_TX_TIME_MAX));
+            packet_parser->parse_generic_command_complete(response);
+
             response = AWAIT_COMMAND(packet_factory->make_ble_read_suggested_default_data_length());
             packet_parser->parse_ble_read_suggested_default_data_length_response(
                 response,

components/bt/bluedroid/hci/hci_packet_factory.c

@@ -154,6 +154,17 @@ static BT_HDR *make_ble_read_suggested_default_data_length(void)
     return make_command_no_params(HCI_BLE_READ_DEFAULT_DATA_LENGTH);
 }
 
+static BT_HDR *make_ble_write_suggested_default_data_length(uint16_t SuggestedMaxTxOctets, uint16_t SuggestedMaxTxTime)
+{
+    uint8_t *stream;
+    uint8_t parameter_size = sizeof(uint16_t) + sizeof(uint16_t);
+    BT_HDR *packet = make_command(HCI_BLE_WRITE_DEFAULT_DATA_LENGTH, parameter_size, &stream);
+
+    UINT16_TO_STREAM(stream, SuggestedMaxTxOctets);
+    UINT16_TO_STREAM(stream, SuggestedMaxTxTime);
+    return packet;
+}
+
 static BT_HDR *make_ble_set_event_mask(const bt_event_mask_t *event_mask)
 {
     uint8_t *stream;
@@ -215,6 +226,7 @@ static const hci_packet_factory_t interface = {
     make_ble_read_local_supported_features,
     make_ble_read_resolving_list_size,
     make_ble_read_suggested_default_data_length,
+    make_ble_write_suggested_default_data_length,
     make_ble_set_event_mask
 };
 

components/bt/bluedroid/hci/include/hci_packet_factory.h

@@ -40,6 +40,7 @@ typedef struct {
     BT_HDR *(*make_ble_read_local_supported_features)(void);
     BT_HDR *(*make_ble_read_resolving_list_size)(void);
     BT_HDR *(*make_ble_read_suggested_default_data_length)(void);
+    BT_HDR *(*make_ble_write_suggested_default_data_length)(uint16_t SuggestedMaxTxOctets, uint16_t SuggestedMaxTxTime);
     BT_HDR *(*make_ble_set_event_mask)(const bt_event_mask_t *event_mask);
 } hci_packet_factory_t;