/// <summary>
/// Puts the SD in INQUIRY (discovery) mode for 30 seconds and returns
/// up to 10 devices seen during that time.
/// </summary>
/// <returns>
/// A list of up to 10 seen devices, or null if error or no devices seen
/// </returns>
/// <remarks>
/// Power consumption during INQUIRY mode is 48 mA
/// </remarks>
public override BTDeviceInfo[] Inquiry()
{
if (!m_devicePresent || !ChangeState(BTDeviceState.STANDBY, BTDeviceState.PENDING))
throw new InvalidOperationException();
try
{
m_ioCtrl.WriteCmd(false, c_OneSecondTimeout, c_ATC_BTINQ, null);
if (c_ATR_OK == m_ioCtrl.WaitForResultResponse(32 * 1000))
{
ArrayList devList = new ArrayList();
byte[] info = null;
while (null != (info = m_ioCtrl.ReadResponse()))
{
string[] devInfo = ConvertToString(info, info.Length).Trim().Split(new char[] { ',' });
BTDeviceInfo dev = new BTDeviceInfo();
dev.Address = devInfo[0];
dev.Name = devInfo[1];
devList.Add(dev);
}
ForceState(BTDeviceState.STANDBY);
if (0 == devList.Count) return null;
BTDeviceInfo[] devArray = new BTDeviceInfo[devList.Count];
for (int i = 0; i < devList.Count; i++) devArray[i] = (BTDeviceInfo)devList[i];
return devArray;
}
}
finally
{
ForceState(BTDeviceState.STANDBY);
}
return null;
}
/// <summary>
/// Retrieves the device configuration information including address, name,
/// authentication on/off, and encryption on/off. Results are stored in
/// public member variables.
/// </summary>
public override void UpdateDeviceStatus()
{
if (!m_devicePresent || !ChangeState(BTDeviceState.STANDBY, BTDeviceState.PENDING))
throw new InvalidOperationException();
try
{
DeviceInfo = new BTDeviceInfo();
m_ioCtrl.WriteCmd(false, c_OneSecondTimeout, c_ATC_BTINFO, null);
if (c_ATR_OK == m_ioCtrl.WaitForResultResponse(c_OneSecondTimeout))
{
byte[] cfg = m_ioCtrl.ReadResponse();
string configStr = ConvertToString(cfg, cfg.Length);
string[] configStrs = configStr.Trim().Split(new char[] { ',' });
DeviceInfo.Address = configStrs[0];
DeviceInfo.Name = configStrs[1];
Authentication = ('1' == configStrs[4][0]) ? true : false;
Encryption = ('1' == configStrs[5][0]) ? true : false;
}
}
finally
{
ForceState(BTDeviceState.STANDBY);
}
}
