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Improved DTR and RTS support. DTR and RTS can now be queried after transmission. Added usage of existing methods and new constants.

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This commit is contained in:
Tim Vahlbrock 2019-11-14 14:44:39 +01:00
parent 92b16a8c24
commit 89ad5be9c3
1 changed files with 22 additions and 18 deletions
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40
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Cp21xxSerialDriver.java
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@ -78,6 +78,7 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
private static final int SILABSER_SET_MHS_REQUEST_CODE = 0x07; private static final int SILABSER_SET_MHS_REQUEST_CODE = 0x07;
private static final int SILABSER_SET_BAUDRATE = 0x1E; private static final int SILABSER_SET_BAUDRATE = 0x1E;
private static final int SILABSER_FLUSH_REQUEST_CODE = 0x12; private static final int SILABSER_FLUSH_REQUEST_CODE = 0x12;
private static final int SILABSER_SET_DTR_RTS_REQUEST_CODE = 0x07;
private static final int FLUSH_READ_CODE = 0x0a; private static final int FLUSH_READ_CODE = 0x0a;
private static final int FLUSH_WRITE_CODE = 0x05; private static final int FLUSH_WRITE_CODE = 0x05;
@ -103,6 +104,21 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
private static final int CONTROL_WRITE_DTR = 0x0100; private static final int CONTROL_WRITE_DTR = 0x0100;
private static final int CONTROL_WRITE_RTS = 0x0200; private static final int CONTROL_WRITE_RTS = 0x0200;
/*
* SILABSER_SET_DTR_RTS_REQUEST_CODE
*/
private static final int DTR_ENABLE = 0x101;
private static final int DTR_DISABLE = 0x100;
private static final int RTS_ENABLE = 0x202;
private static final int RTS_DISABLE = 0x200;
private UsbEndpoint mReadEndpoint;
private UsbEndpoint mWriteEndpoint;
private UsbRequest mUsbRequest;
private boolean dtr = false;
private boolean rts = false;
// second port of Cp2105 has limited baudRate, dataBits, stopBits, parity // second port of Cp2105 has limited baudRate, dataBits, stopBits, parity
// unsupported baudrate returns error at controlTransfer(), other parameters are silently ignored // unsupported baudrate returns error at controlTransfer(), other parameters are silently ignored
private boolean mIsRestrictedPort; private boolean mIsRestrictedPort;
@ -276,19 +292,13 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
@Override @Override
public boolean getDTR() throws IOException { public boolean getDTR() throws IOException {
return true; return dtr;
} }
@Override @Override
public void setDTR(boolean value) throws IOException { public void setDTR(boolean value) throws IOException {
mConnection.controlTransfer( dtr = value;
UsbConstants.USB_DIR_OUT | UsbConstants.USB_TYPE_VENDOR | 0x01, setConfigSingle(SILABSER_SET_DTR_RTS_REQUEST_CODE, dtr ? DTR_ENABLE : DTR_DISABLE);
0x07,
value ? 0x101 : 0x100,
0,
null,
0,
2000);
} }
@Override @Override
@ -298,19 +308,13 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
@Override @Override
public boolean getRTS() throws IOException { public boolean getRTS() throws IOException {
return true; return rts;
} }
@Override @Override
public void setRTS(boolean value) throws IOException { public void setRTS(boolean value) throws IOException {
mConnection.controlTransfer( rts = value;
0x41, setConfigSingle(SILABSER_SET_DTR_RTS_REQUEST_CODE, rts ? RTS_ENABLE : RTS_DISABLE);
0x07,
value ? 0x202 : 0x200,
0,
null,
0,
2000);
} }
@Override @Override