private static void OnHotPlug(KHOT_HANDLE hotHandle,
KLST_DEVINFO_HANDLE deviceInfo,
KLST_SYNC_FLAG plugType)
{
LinkDevice d;
int totalPluggedDeviceCount = (int)hotHandle.GetContext().ToInt64();
if (totalPluggedDeviceCount == int.MaxValue)
{
// OnHotPlug is being called for the first time on handle: hotHandle.Pointer.
totalPluggedDeviceCount = 0;
}
switch (plugType)
{
case KLST_SYNC_FLAG.ADDED: // Arrival.
totalPluggedDeviceCount++;
lock (Manager.UsbConnectionLock) {
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Added: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
if (UsbPermissionValidator.CheckAllowed(deviceInfo.Common.Vid, deviceInfo.Common.Pid))
{
UsbLinkDevice.TryOpeningDevice(deviceInfo);
}
else
{
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Added: Not allowed: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
}
}
break;
case KLST_SYNC_FLAG.REMOVED: // Removal.
totalPluggedDeviceCount--;
lock (Manager.UsbConnectionLock) {
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "OnHotPlug.Removed: " + UsbLinkDevice.DeviceInfoToString(deviceInfo));
}
d = LinkManager.Manager.FindDevice(UsbLinkDevice.GetDevIdFromHandle(deviceInfo));
UsbLinkDevice u = d as UsbLinkDevice;
if (u != null)
{
u.Disconnect(deviceInfo); // Disconnect device but keep in Active list.
}
}
break;
default:
return;
}
hotHandle.SetContext(new IntPtr(totalPluggedDeviceCount));
}
// Scan the current usb devices to check all connected.
private void CheckConnections()
{
lock (UsbConnectionLock) {
KLST_DEVINFO_HANDLE deviceInfo;
LstK lst = new LstK(KLST_FLAG.NONE);
int deviceCount = 0;
lst.Count(ref deviceCount);
while (lst.MoveNext(out deviceInfo))
{
LinkDevice d = LinkManager.Manager.FindDevice(UsbLinkDevice.GetDevIdFromHandle(deviceInfo));
// Check if d is a suspended Acc with same SN but different V/P.
if (d == null || ((d.State != ComponentState.Working) /*&& !UsbLinkDevice.CompareVidPid(d, deviceInfo)*/))
{
if (UsbPermissionValidator.CheckAllowed(deviceInfo.Common.Vid, deviceInfo.Common.Pid))
{
UsbLinkDevice.TryOpeningDevice(deviceInfo);
}
}
}
lst.Free();
}
}
// Check that LinkDevice and DEVINFO refer to same device by comparing Vid & Pid.
// Returns truee if they do.
public static bool CompareVidPid(LinkDevice d, KLST_DEVINFO_HANDLE h)
{
UsbLinkDevice u = d as UsbLinkDevice;
return(u != null && u.DevPid == h.Common.Pid && u.DevVid == h.Common.Vid);
}
// As well as opening the device:
// Try putting it into accessory mode as necessary.
// Returns null if unable to open or it was switched into accessory mode.
// The steps for determining whether to connect to a usb device are:
// 1) Consult vid/pid include & exclude lists.
// 2) Open device.
public static void TryOpeningDevice(KLST_DEVINFO_HANDLE deviceInfo)
{
bool isNewDev, checkForAccessory;
string devId = GetDevIdFromHandle(deviceInfo);
LinkDevice d = LinkManager.Manager.FindDevice(devId);
UsbLinkDevice u = d as UsbLinkDevice;
if (u != null)
{
if (u.State == ComponentState.Working || u.State == ComponentState.Unresponsive)
{
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "TryOpeningDevice: already open:" + DeviceInfoToString(deviceInfo));
}
return;
}
// Check if d is a suspended Acc with same SN but different V/P.
checkForAccessory = true; // !CompareVidPid(d, deviceInfo);
u.CloseDevice(); //FIX: should already be closed?
u.InitDevice(deviceInfo);
isNewDev = false;
}
else
{
checkForAccessory = true;
u = new UsbLinkDevice(deviceInfo);
isNewDev = true;
}
string result = null;
lock (u.UsbLock) {
result = u.ConfigureDevice(deviceInfo, checkForAccessory);
}
if (result == null)
{
u.SetSessionId();
if (isNewDev)
{
LinkManager.Manager.AddDevice(u.Id, u);
u.InitThreads();
u.NotifyStateChange(ComponentState.Working);
}
else
{
u.Resume();
}
}
else
{
u.DriverClose();
if (Settings.DebugLevel > 4)
{
Log.d(TAG, "ConfigureDevice: " + result);
}
if (!isNewDev)
{
u.NotifyStateChange(ComponentState.Problem);
}
else // Gets here if device was switched to acc mode.
{
u.Id = null; // Prevents LinkManager.DeleteDevice being called on Close.
}
}
}
/// <summary>
/// Configure for FT230XS.
/// </summary>
/// <param name="dev">The usb device to try to configure.</param>
/// <returns>Returns true on success.</returns>
public static bool ConfigureFTDI(UsbLinkDevice dev)
{
byte request;
ushort value;
ushort index;
// Reset command.
request = 0x00;
value = 0x0000; // Purge RX & TX.
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set modem control reg.
request = 0x01;
value = 0x0000; //0x0000 = DTR & RTS off.
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set flow control.
request = 0x02;
value = 0x0000; // No Xon & Xoff.
index = 0x01; // Port A + no flow control.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set baud rate.
request = 0x03;
value = 0x0034; // 57600 => div=0x34, subdiv = 0x03 => 0xC000.
index = 0x0; // Index used for Baud High, set bit 0 to zero. Not used for Port number.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set data.
request = 0x04;
value = 0x0008; // 8 bit data, no parity, 1 stop bit, no break.
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set event char.
request = 0x06;
value = 0x0000; // None.
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set error char.
request = 0x07;
value = 0x0000; // None.
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set latency timer.
request = 0x09;
value = 0x002; // Or 2 ms!
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
// Set bit mode.
request = 0x0B;
value = 0x0000; // 0x0000 = Off. Or should it be 0x4000?
index = 0x1; // Port A.
if (!dev.ControlTransfer(UsbCh9.USB_TYPE_VENDOR, request, value, index))
{
return(false);
}
return(true);
}
public static bool IsFtdiDevice(UsbLinkDevice dev)
{
return(IsFtdiDevice(dev.DevVid, dev.DevPid));
}
// Returns true if device was switched into Android accessory mode.
// Note: only use u for ControlTransfer since vid/pid may be stale.
public static bool TryOpeningAccessory(UsbLinkDevice u)
{
byte[] ioBuffer = new byte[2];
int outLen = 0;
bool response;
string serialNumber = ACCSerialNumber;
if (String.IsNullOrWhiteSpace(serialNumber) || (serialNumber.Length < 2))
{
serialNumber = Settings.SerialNumberFormatter(Lima.GetComputerCode(), 'B', 'X');
}
// response = u.mUsb.ResetDevice();
// if(!response) { ShowLastError(); return null; }
// Note: this clears strings on device too.
response = u.ControlTransfer(UsbRqstInVendor, ACCESSORY_GET_PROTOCOL, 0, 0, ioBuffer, 2, 0, out outLen);
if (!response)
{
return(false);
}
TmpDevVersion = ioBuffer[1] << 8 | ioBuffer[0]; //This should be >0 if Accessory mode supported.
if (TmpDevVersion == 0)
{
return(false);
}
Thread.Sleep(1000); // Allow space after In cmd otherwise sometimes hangs on the next transfer.
ioBuffer = Encoding.UTF8.GetBytes(Settings.AppManufacturer); // Strings must be in UTF8 encoding.
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_MANUFACTURER, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
ioBuffer = Encoding.UTF8.GetBytes(Settings.AppModelName);
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_MODEL, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
ioBuffer = Encoding.UTF8.GetBytes(Settings.AppDescription);
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_DESCRIPTION, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
ioBuffer = Encoding.UTF8.GetBytes(Settings.AppVersion);
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_VERSION, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
ioBuffer = Encoding.UTF8.GetBytes(Settings.AppURI);
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_URI, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
ioBuffer = Encoding.UTF8.GetBytes(serialNumber);
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_SEND_STRING, 0, ACCESSORY_STRING_SERIAL, ioBuffer, ioBuffer.Length);
if (!response)
{
return(false);
}
// Control request for starting device in accessory mode.
// The host sends this after setting all its strings to the device.
response = u.ControlTransfer(UsbRqstOutVendor, ACCESSORY_START, 0, 0);
Thread.Sleep(2000); // Allow time to switch.
return(response);
}