void gatt_service_disconnected(const char *bdaddr, const char *service, int instance, int reason, void *userData)
{
Q_UNUSED(userData)
Q_UNUSED(instance)
Q_UNUSED(reason)
QString bdaddr_str = QString(bdaddr);
QString service_str = QString(service);
qDebug() << QString("XXXX gatt_service_disconnected: bdaddr:%1 : %2 - %3").arg(bdaddr_str).arg(service_str).arg(parse_service_uuid(service));
DataContainer *dc = DataContainer::getInstance();
if (instance == dc->getLinkLossServiceInstance()) {
qDebug() << "XXXX reacting to link loss service disconnection";
link_loss_connected = false;
dc->setLinkLossServiceInstance(0);
_handler->emitSignalLostLink();
}
if (instance == dc->getTxPowerServiceInstance()) {
qDebug() << "XXXX reacting to tx power service disconnection";
tx_power_connected = false;
dc->setTxPowerServiceInstance(0);
}
if (instance == dc->getAlertServiceInstance()) {
qDebug() << "XXXX reacting to immediate alert service disconnection";
immediate_alert_connected = false;
dc->setAlertServiceInstance(0);
}
}
void btEvent(const int event, const char *bt_addr, const char *event_data)
{
Q_UNUSED(bt_addr)
QString event_name = btEventName(event);
qDebug() << "XXXX bluetooth event:" << event_name;
if (event_data != NULL) {
QString event_data_str = QString(*event_data);
qDebug() << "XXXX BT event_data=" << event_data_str;
} else {
qDebug() << "XXXX BT event_data=NULL";
}
if (event == BT_EVT_LE_DEVICE_CONNECTED) {
_handler->emitSignalSetMessage("Chicken sensor has connected");
DataContainer *dc = DataContainer::getInstance();
dc->setDeviceConnected(true);
_handler->emitSignalLinkEstablished();
return;
}
if (event == BT_EVT_LE_DEVICE_DISCONNECTED) {
immediate_alert_connected = false;
link_loss_connected = false;
tx_power_connected = false;
rssi_polling_required = false;
DataContainer *dc = DataContainer::getInstance();
dc->setDeviceConnected(false);
dc->setAlertServiceInstance(0);
dc->setLinkLossServiceInstance(0);
dc->setTxPowerServiceInstance(0);
_handler->emitSignalSetMessage("Chicken sensor has disconnected");
_handler->emitSignalDisableProximityVisualisation();
return;
}
}
void establishHandles(int service_type, int instance)
{
if (service_type < 1 || service_type > 3) {
qDebug() << "XXXX invalid service type indicator passed to establishAlertLevelHandle function:" << service_type;
return;
}
const char* characteristic_uuids[] = { ALERT_LEVEL_UUID, ALERT_LEVEL_UUID, TX_POWER_LEVEL_UUID };
DataContainer *dc = DataContainer::getInstance();
bt_gatt_characteristic_t* alert_level;
// find the handle of the alert level characteristic
int num_characteristics = bt_gatt_characteristics_count(instance);
qDebug() << "YYYY # characteristics=" << num_characteristics;
if (num_characteristics > -1) {
qDebug() << QString("YYYY # characteristics: %1").arg(num_characteristics);
bt_gatt_characteristic_t *characteristicList;
characteristicList = (bt_gatt_characteristic_t*) malloc(num_characteristics * sizeof(bt_gatt_characteristic_t));
if (NULL == characteristicList) {
qDebug() << QString("YYYY GATT characteristics: Not enough memory");
bt_gatt_disconnect_instance(instance);
return;
}
/* BEGIN WORKAROUND - Temporary fix to address race condition */
int number = 0;
do {
number = bt_gatt_characteristics(instance, characteristicList, num_characteristics);
} while ((number == -1) && (errno== EBUSY));
int characteristicListSize = number;
for (int i = 0; i < characteristicListSize; i++) {
qDebug() << "YYYY characteristic: uuid,handle,value_handle:" << characteristicList[i].uuid << "," << characteristicList[i].handle << "," << characteristicList[i].value_handle;
if (strcmp(characteristicList[i].uuid, characteristic_uuids[service_type - 1]) == 0) {
qDebug() << "YYYY found alert level characteristic";
switch (service_type) {
case INDEX_IMMEDIATE_ALERT_SERVICE:
qDebug() << "XXXX CONNECTED TO IMMEDIATE ALERT SERVICE - saving handles";
dc->setAlertServiceInstance(instance);
dc->setImmediateAlertLevelHandle(characteristicList[i].handle);
dc->setImmediateAlertLevelValueHandle(characteristicList[i].value_handle);
break;
case INDEX_LINK_LOSS_SERVICE:
qDebug() << "XXXX CONNECTED TO LINK LOSS SERVICE - saving handles";
dc->setLinkLossAlertLevelHandle(characteristicList[i].handle);
dc->setLinkLossAlertLevelValueHandle(characteristicList[i].value_handle);
dc->setLinkLossServiceInstance(instance);
break;
case INDEX_TX_POWER_SERVICE:
qDebug() << "XXXX CONNECTED TO TX POWER SERVICE - saving handles";
dc->setTxPowerLevelHandle(characteristicList[i].handle);
dc->setTxPowerLevelValueHandle(characteristicList[i].value_handle);
dc->setTxPowerServiceInstance(instance);
break;
}
} else {
qDebug() << "YYYY other characteristic: uuid,handle,value_handle=" << characteristicList[i].uuid << "," << characteristicList[i].handle << "," << characteristicList[i].value_handle;
}
}
if (characteristicList != NULL) {
free(characteristicList);
characteristicList = NULL;
}
/* END WORKAROUND */
}
}
