/**
* @brief Handle GATT client events.
*
* Handler for the GATT client events.
*
* @param [in] event
* @param [in] gattc_if
* @param [in] param
*/
/* STATIC */ void BLEDevice::gattClientEventHandler(
esp_gattc_cb_event_t event,
esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t* param) {
ESP_LOGD(LOG_TAG, "gattClientEventHandler [esp_gatt_if: %d] ... %s",
gattc_if, BLEUtils::gattClientEventTypeToString(event).c_str());
BLEUtils::dumpGattClientEvent(event, gattc_if, param);
switch(event) {
case ESP_GATTC_CONNECT_EVT: {
if(BLEDevice::getMTU() != 23){
esp_err_t errRc = esp_ble_gattc_send_mtu_req(gattc_if, param->connect.conn_id);
if (errRc != ESP_OK) {
ESP_LOGE(LOG_TAG, "esp_ble_gattc_send_mtu_req: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
}
}
if(BLEDevice::m_securityLevel){
esp_ble_set_encryption(param->connect.remote_bda, BLEDevice::m_securityLevel);
}
break;
} // ESP_GATTC_CONNECT_EVT
default: {
break;
}
} // switch
// If we have a client registered, call it.
if (BLEDevice::m_pClient != nullptr) {
BLEDevice::m_pClient->gattClientEventHandler(event, gattc_if, param);
}
} // gattClientEventHandler
/**
* @brief Handle GATT Client events
*/
void BLEClient::gattClientEventHandler(
esp_gattc_cb_event_t event,
esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t* evtParam) {
ESP_LOGD(LOG_TAG, "gattClientEventHandler [esp_gatt_if: %d] ... %s",
gattc_if, BLEUtils::gattClientEventTypeToString(event).c_str());
// Execute handler code based on the type of event received.
switch(event) {
case ESP_GATTC_SRVC_CHG_EVT:
ESP_LOGI(LOG_TAG, "SERVICE CHANGED");
break;
case ESP_GATTC_CLOSE_EVT: {
// esp_ble_gattc_app_unregister(m_appId);
// BLEDevice::removePeerDevice(m_gattc_if, true);
break;
}
//
// ESP_GATTC_DISCONNECT_EVT
//
// disconnect:
// - esp_gatt_status_t status
// - uint16_t conn_id
// - esp_bd_addr_t remote_bda
case ESP_GATTC_DISCONNECT_EVT: {
// If we receive a disconnect event, set the class flag that indicates that we are
// no longer connected.
m_isConnected = false;
if (m_pClientCallbacks != nullptr) {
m_pClientCallbacks->onDisconnect(this);
}
BLEDevice::removePeerDevice(m_appId, true);
esp_ble_gattc_app_unregister(m_gattc_if);
m_semaphoreRssiCmplEvt.give();
m_semaphoreSearchCmplEvt.give(1);
break;
} // ESP_GATTC_DISCONNECT_EVT
//
// ESP_GATTC_OPEN_EVT
//
// open:
// - esp_gatt_status_t status
// - uint16_t conn_id
// - esp_bd_addr_t remote_bda
//
case ESP_GATTC_OPEN_EVT: {
m_conn_id = evtParam->open.conn_id;
if (m_pClientCallbacks != nullptr) {
m_pClientCallbacks->onConnect(this);
}
if (evtParam->open.status == ESP_GATT_OK) {
m_isConnected = true; // Flag us as connected.
}
m_semaphoreOpenEvt.give(evtParam->open.status);
break;
} // ESP_GATTC_OPEN_EVT
//
// ESP_GATTC_REG_EVT
//
// reg:
// esp_gatt_status_t status
// uint16_t app_id
//
case ESP_GATTC_REG_EVT: {
m_gattc_if = gattc_if;
m_semaphoreRegEvt.give();
break;
} // ESP_GATTC_REG_EVT
case ESP_GATTC_CFG_MTU_EVT:
if(evtParam->cfg_mtu.status != ESP_GATT_OK) {
ESP_LOGE(LOG_TAG,"Config mtu failed");
}
m_mtu = evtParam->cfg_mtu.mtu;
break;
case ESP_GATTC_CONNECT_EVT: {
BLEDevice::updatePeerDevice(this, true, m_gattc_if);
esp_err_t errRc = esp_ble_gattc_send_mtu_req(gattc_if, evtParam->connect.conn_id);
if (errRc != ESP_OK) {
ESP_LOGE(LOG_TAG, "esp_ble_gattc_send_mtu_req: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
}
#ifdef CONFIG_BLE_SMP_ENABLE // Check that BLE SMP (security) is configured in make menuconfig
if(BLEDevice::m_securityLevel){
esp_ble_set_encryption(evtParam->connect.remote_bda, BLEDevice::m_securityLevel);
}
#endif // CONFIG_BLE_SMP_ENABLE
break;
} // ESP_GATTC_CONNECT_EVT
//
// ESP_GATTC_SEARCH_CMPL_EVT
//
// search_cmpl:
// - esp_gatt_status_t status
// - uint16_t conn_id
//
case ESP_GATTC_SEARCH_CMPL_EVT: {
esp_ble_gattc_cb_param_t* p_data = (esp_ble_gattc_cb_param_t*)evtParam;
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(LOG_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
#ifndef ARDUINO_ARCH_ESP32
// commented out just for now to keep backward compatibility
// if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
// ESP_LOGI(LOG_TAG, "Get service information from remote device");
// } else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
// ESP_LOGI(LOG_TAG, "Get service information from flash");
// } else {
// ESP_LOGI(LOG_TAG, "unknown service source");
// }
#endif
m_semaphoreSearchCmplEvt.give(0);
break;
} // ESP_GATTC_SEARCH_CMPL_EVT
//
// ESP_GATTC_SEARCH_RES_EVT
//
// search_res:
// - uint16_t conn_id
// - uint16_t start_handle
// - uint16_t end_handle
// - esp_gatt_id_t srvc_id
//
case ESP_GATTC_SEARCH_RES_EVT: {
BLEUUID uuid = BLEUUID(evtParam->search_res.srvc_id);
BLERemoteService* pRemoteService = new BLERemoteService(
evtParam->search_res.srvc_id,
this,
evtParam->search_res.start_handle,
evtParam->search_res.end_handle
);
m_servicesMap.insert(std::pair<std::string, BLERemoteService*>(uuid.toString(), pRemoteService));
m_servicesMapByInstID.insert(std::pair<BLERemoteService *, uint16_t>(pRemoteService, evtParam->search_res.srvc_id.inst_id));
break;
} // ESP_GATTC_SEARCH_RES_EVT
default: {
break;
}
} // Switch
// Pass the request on to all services.
for (auto &myPair : m_servicesMap) {
myPair.second->gattClientEventHandler(event, gattc_if, evtParam);
}
} // gattClientEventHandler
