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Adds RTS & DTR support to the PL2303 driver #373

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Adds RTS & DTR support to the PL2303 driver #373

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24 changes: 20 additions & 4 deletions usbserial/src/main/java/com/felhr/usbserial/PL2303SerialDevice.java
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ public class PL2303SerialDevice extends UsbSerialDevice
(byte) 0x08 // [6] Data Bits (5=5, 6=6, 7=7, 8=8)
};

private int rtsDtrState = 0x0000;

private final UsbInterface mInterface;
private UsbEndpoint inEndpoint;
Expand Down Expand Up @@ -273,13 +274,27 @@ public void setBreak(boolean state)
@Override
public void setRTS(boolean state)
{
//TODO
if(state)
{
rtsDtrState |= (1 << 1);
}else
{
rtsDtrState &= ~(1 << 1);
}
setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_CONTROL_REQUEST, rtsDtrState, 0, null);
}

@Override
public void setDTR(boolean state)
{
//TODO
if(state)
{
rtsDtrState |= (1 << 0);
}else
{
rtsDtrState &= ~(1 << 0);
}
setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_CONTROL_REQUEST, rtsDtrState, 0, null);
}

@Override
Expand Down Expand Up @@ -368,10 +383,11 @@ else if(endpoint.getType() == UsbConstants.USB_ENDPOINT_XFER_BULK
if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE_VENDOR, PL2303_VENDOR_WRITE_REQUEST, 0x0002, 0x0044, null) < 0)
return false;
// End of specific vendor stuff
if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_CONTROL_REQUEST, 0x0003, 0,null) < 0)
return false;
//if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_CONTROL_REQUEST, 0x0000, 0, null) < 0)
if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_LINE_CODING, 0x0000, 0, defaultSetLine) < 0)
return false;
if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE, PL2303_SET_CONTROL_REQUEST, rtsDtrState, 0, null) < 0)
return false;
if(setControlCommand(PL2303_REQTYPE_HOST2DEVICE_VENDOR, PL2303_VENDOR_WRITE_REQUEST, 0x0505, 0x1311, null) < 0)
return false;

Expand Down