// the "connection_status" event occurs when a new connection is established
public void ConnectionStatusEvent(object sender, Bluegiga.BLE.Events.Connection.StatusEventArgs e)
{
String log = String.Format("ble_evt_connection_status: connection={0}, flags={1}, address=[ {2}], address_type={3}, conn_interval={4}, timeout={5}, latency={6}, bonding={7}" + Environment.NewLine,
e.connection,
e.flags,
ByteArrayToHexString(e.address),
e.address_type,
e.conn_interval,
e.timeout,
e.latency,
e.bonding
);
Console.Write(log);
ThreadSafeDelegate(delegate { txtLog.AppendText(log); });
if ((e.flags & 0x05) == 0x05)
{
// connected, now perform service discovery
connection_handle = e.connection;
ThreadSafeDelegate(delegate { txtLog.AppendText(String.Format("Connected to {0}", ByteArrayToHexString(e.address)) + Environment.NewLine); });
Byte[] cmd = bglib.BLECommandATTClientReadByGroupType(e.connection, 0x0001, 0xFFFF, new Byte[] { 0x00, 0x28 }); // "service" UUID is 0x2800 (little-endian for UUID uint8array)
#if PRINT_DEBUG
ThreadSafeDelegate(delegate { txtLog.AppendText(String.Format("=> TX ({0}) [ {1}]", cmd.Length, ByteArrayToHexString(cmd)) + Environment.NewLine); });
#endif
bglib.SendCommand(serialAPI, cmd);
// update state
app_state = STATE_FINDING_SERVICES;
}
}
private void BLEPerformNextTask(BLEPeripheral peripheral)
{
// Find all attributes
if (peripheral.Attributes.Count() == 0)
{
ushort start = 0x0001;
ushort end = 0xFFFF;
cmd = bglib.BLECommandATTClientFindInformation(peripheral.Connection, start, end);
MessageWriter.LogWrite("ble_cmd_att_client_find_information: ", string.Format("connection={0}, start={1}, end={2}",
peripheral.Connection,
start,
end));
bglib.SendCommand(SelectedPort, cmd);
}
// Have attributes been found?
else if (peripheral.Services.Count() == 0)
{
// Perform service discovery
ushort start = 0x0001;
ushort end = 0xFFFF;
byte[] primaryService = new byte[] { 0x00, 0x28 };
cmd = bglib.BLECommandATTClientReadByGroupType(peripheral.Connection, start, end, primaryService);
MessageWriter.LogWrite("ble_cmd_att_client_read_by_group_type: ", string.Format("connection={0}, start={1}, end={2}, uuid={3}",
peripheral.Connection,
start,
end,
BitConverter.ToString(primaryService)));
bglib.SendCommand(SelectedPort, cmd);
}
else if (!peripheral.Services.ContainsKey("CustomService"))
{
MessageWriter.LogWrite("Invalid device selected");
peripheral.Disconnect();
}
else if (peripheral.attHandleCCC.Count > 0)
{
// Enable indications
byte[] indications = new byte[] { 0x03, 0x00 };
byte[] cmd = bglib.BLECommandATTClientAttributeWrite(peripheral.Connection, peripheral.attHandleCCC.Peek(), indications);
MessageWriter.LogWrite("ble_cmd_att_client_attribute_write: ", string.Format("connection={0}, att_handle={1}, data={2}",
peripheral.Connection, peripheral.attHandleCCC.Dequeue(), BitConverter.ToString(indications)));
bglib.SendCommand(SelectedPort, cmd);
}
// Is the low power mode state known?
else if (peripheral.Characteristics.ContainsKey("LPM"))
{
if (peripheral.Characteristics["LPM"].ValueAttribute.Handle > 0 && peripheral.LowPowerMode == BLEPeripheral.LPM.Unknown) //TODO Low-Power mode key not found
{
// Check sleep mode
cmd = bglib.BLECommandATTClientReadByHandle(peripheral.Connection, peripheral.Characteristics["LPM"].ValueAttribute.Handle);
MessageWriter.LogWrite("ble_cmd_att_client_read_by_handle: ", string.Format("connection={0}, handle={1}",
peripheral.Connection, peripheral.Characteristics["LPM"].ValueAttribute.Handle));
bglib.SendCommand(SelectedPort, cmd);
}
}
}
//-------------------------------------------------------------------------------------------------------------
// Event handler for the ConnectionStatus event.
// The "Connection_Status" event occurs when a new connection is established.
public void ConnectionStatusEvent(object sender, Bluegiga.BLE.Events.Connection.StatusEventArgs e)
{
String log = String.Format("ble_evt_connection_status: connection={0}, flags={1}, address=[ {2}], address_type={3}, conn_interval={4}, timeout={5}, latency={6}, bonding={7}" + Environment.NewLine,
e.connection,
e.flags,
ByteArrayToHexString(e.address),
e.address_type,
e.conn_interval,
e.timeout,
e.latency,
e.bonding
);
Console.Write(log);
ThreadSafeDelegate(delegate { txtLog.AppendText(log); });
// Check the flags to see if a connection was completed.
// Ref: p. 41 for links, see p. 96 for flag values
if ((e.flags & 0x05) == 0x05)
{
// Connected, now perform service discovery.
// Save the connection_handle value.
connection_handle = e.connection;
ThreadSafeDelegate(delegate { txtLog.AppendText(String.Format("Connected to {0}", ByteArrayToHexString(e.address)) + Environment.NewLine); });
// Create the ATTClientReadByGroup command.
// "service" UUID is 0x2800 (little-endian for UUID uint8array).
// Ref: https://www.bluetooth.com/specifications/gatt/declarations
// Get a "list" of all services provided.
Byte[] cmd = bglib.BLECommandATTClientReadByGroupType(
e.connection, 0x0001, 0xFFFF, new Byte[] { 0x00, 0x28 });
// DEBUG: display bytes written
ThreadSafeDelegate(delegate { txtLog.AppendText(String.Format("=> TX ({0}) [ {1}]", cmd.Length, ByteArrayToHexString(cmd)) + Environment.NewLine); });
// Send the command, triggering the ATTClientGroupFoundEvent and
// the ProcedureCompleted event. Ref. p. 53.
bglib.SendCommand(serialAPI, cmd);
// Update the application state.
app_state = STATE_FINDING_SERVICES;
}
}
private void ScanThread()
{
DateTime mTimStart = DateTime.Now;
while (true)
{
switch (c_BleDev.State)
{
case GhpBle.ACTTION_IDLE:
Thread.Sleep(50);
break;
#if false
case GhpBle.ACTIION_ATTR_PAIR_CHECK:
{
mTimStart = DateTime.Now;
while (c_BleDev.Busy)
{
TimeSpan mTimDif = DateTime.Now.Subtract(mTimStart);
if (mTimDif.Seconds > 3)
{
break;
}
}
c_BleDev.Busy = true;
byte[] cmd = bglib.BLECommandATTClientReadByType(c_BleDev.ConnHandle, 0x0001, 0xFFFF, new byte[] { 0x03, 0x28 });
bglib.SendCommand(comDev, cmd);
mTimStart = DateTime.Now;
while (c_BleDev.Busy)
{
TimeSpan mTimDif = DateTime.Now.Subtract(mTimStart);
if (mTimDif.Seconds > 3)
{
break;
}
}
if (c_BleDev.NeedPair)
{
if (c_BleDev.Paired == false)
{
c_BleDev.Busy = true;
byte[] cmd2 = bglib.BLECommandSMEncryptStart(c_BleDev.ConnHandle, 1);
bglib.SendCommand(comDev, cmd2);
mTimStart = DateTime.Now;
while (c_BleDev.Paired == false)
{
TimeSpan mTimDif = DateTime.Now.Subtract(mTimStart);
if (mTimDif.Seconds > 3)
{
break;
}
}
}
else
{
c_BleDev.State = GhpBle.ACTIONN_ATTR_PAIR_DONE;
}
}
else
{
c_BleDev.State = GhpBle.ACTIONN_ATTR_PAIR_DONE;
}
}
break;
case GhpBle.ACTIONN_ATTR_PAIR_DONE:
if (c_BleDev.NeedPair && c_BleDev.Paired)
{
c_BleDev.State = GhpBle.ACTTION_SCAN_PRIMSRV;
}
break;
#endif
case GhpBle.ACTTION_SCAN_PRIMSRV:
{
c_BleDev.Busy = true;
Byte[] cmd = bglib.BLECommandATTClientReadByGroupType(c_BleDev.ConnHandle, 0x0001, 0xFFFF, new Byte[] { 0x00, 0x28 });
bglib.SendCommand(comDev, cmd);
mTimStart = DateTime.Now;
while (c_BleDev.Busy)
{
TimeSpan mTimDif = DateTime.Now.Subtract(mTimStart);
if (mTimDif.Seconds > 10)
{
break;
}
}
c_BleDev.State = GhpBle.ACTTION_SCAN_PRIMSRV_DONE;
}
break;
case GhpBle.ACTTION_SCAN_PRIMSRV_DONE:
break;
case GhpBle.ACTTION_SCAN_ATTRIB:
if (c_BleDev.CurrentPrimSrv != null)
{
if (c_BleDev.CurrentPrimSrv.AttScanDone == false)
{
//
//scan all attribute first.
//
c_BleDev.Busy = true;
Byte[] cmd = bglib.BLECommandATTClientFindInformation(c_BleDev.ConnHandle, c_BleDev.CurrentPrimSrv.Start, c_BleDev.CurrentPrimSrv.End);
bglib.SendCommand(comDev, cmd);
mTimStart = DateTime.Now;
while (c_BleDev.Busy)
{
TimeSpan mTimDif = DateTime.Now.Subtract(mTimStart);
if (mTimDif.Seconds > 20)
{
break;
}
}
//
//Now read user description of each attribute;
//
foreach (CAttribute attr in c_BleDev.CurrentPrimSrv.AttrList)
{
c_BleDev.Busy = true;
c_BleDev.AttReadDone = false;
cmd = bglib.BLECommandATTClientReadByHandle(c_BleDev.ConnHandle, attr.UserDescHandle);
bglib.SendCommand(comDev, cmd);
while (c_BleDev.Busy && c_BleDev.AttReadDone == false)
{
}
if (c_BleDev.AttReadDone == true)
{
attr.AttName = Encoding.UTF8.GetString(c_BleDev.AttReadValue);
}
}
c_BleDev.CurrentPrimSrv.AttScanDone = true;
}
}
c_BleDev.State = GhpBle.ACTTION_SCAN_ATTRIB_DONE;
break;
case GhpBle.ACTTION_SCAN_ATTRIB_DONE:
break;
case GhpBle.ACTTION_ATTR_READ:
while (c_BleDev.Busy == false && c_BleDev.AttReadDone == false)
{
;
}
c_BleDev.State = GhpBle.ACTIONN_ATTR_READ_DONE;
break;
case GhpBle.ACTIONN_ATTR_READ_DONE:
break;
case GhpBle.ACTTION_ATTR_WRITE:
break;
default:
break;
}
}
}
