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usb-serial-for-android
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Added missing functions: - latency timer - modem lines 

Signed-off-by: kai-morich <mail@kai-morich.de>
This commit is contained in:
uholeschak 2015-09-19 09:45:55 +02:00 committed by kai-morich
parent a954db1b94
commit 21e96594d2
1 changed files with 76 additions and 6 deletions
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82
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
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@ -151,6 +151,11 @@ public class FtdiSerialDriver implements UsbSerialDriver {
*/
private static final int SIO_SET_FLOW_CTRL_REQUEST = 2;
private static final int SIO_SET_DTR_HIGH = 0x0101;
private static final int SIO_SET_DTR_LOW = 0x0100;
private static final int SIO_SET_RTS_HIGH = 0x0202;
private static final int SIO_SET_RTS_LOW = 0x0200;
/**
* Set baud rate.
*/
@ -165,6 +170,26 @@ public class FtdiSerialDriver implements UsbSerialDriver {
private static final int SIO_RESET_PURGE_RX = 1; // RX @ FTDI device = write @ usb-serial-for-android library
private static final int SIO_RESET_PURGE_TX = 2;
/**
* Get modem status.
*/
private static final int SIO_GET_MODEM_STATUS_REQUEST = 5;
public static final int SIO_MODEM_STATUS_CTS = 0x10;
public static final int SIO_MODEM_STATUS_DSR = 0x20;
public static final int SIO_MODEM_STATUS_RI = 0x40;
public static final int SIO_MODEM_STATUS_RLSD = 0x80;
/**
* Set the latency timer.
*/
private static final int SIO_SET_LATENCY_TIMER_REQUEST = 9;
/**
* Get the latency timer.
*/
private static final int SIO_GET_LATENCY_TIMER_REQUEST = 10;
public static final int FTDI_DEVICE_OUT_REQTYPE =
UsbConstants.USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT;
@ -182,6 +207,9 @@ public class FtdiSerialDriver implements UsbSerialDriver {
private int mIndex = 0;
private boolean mDtrState = false;
private boolean mRtsState = false;
public FtdiSerialPort(UsbDevice device, int portNumber) {
super(device, portNumber);
}
@ -234,6 +262,36 @@ public class FtdiSerialDriver implements UsbSerialDriver {
if (result != 0) {
throw new IOException("Reset failed: result=" + result);
}
mDtrState = false;
mRtsState = false;
}
public void setLatencyTimer(int latencyTime) throws IOException {
int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_SET_LATENCY_TIMER_REQUEST,
latencyTime, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
if (result != 0) {
throw new IOException("Set latency timer failed: result=" + result);
}
}
public int getLatencyTimer() throws IOException {
byte[] data = new byte[1];
int result = mConnection.controlTransfer(FTDI_DEVICE_IN_REQTYPE, SIO_GET_LATENCY_TIMER_REQUEST,
0, 0 /* index */, data, data.length, USB_WRITE_TIMEOUT_MILLIS);
if (result != 1) {
throw new IOException("Get latency timer failed: result=" + result);
}
return data[0];
}
public int getModemStatus() throws IOException {
byte[] data = new byte[2];
int result = mConnection.controlTransfer(FTDI_DEVICE_IN_REQTYPE, SIO_GET_LATENCY_TIMER_REQUEST,
0, 0 /* index */, data, data.length, USB_WRITE_TIMEOUT_MILLIS);
if (result != 2) {
throw new IOException("Get modem statusfailed: result=" + result);
}
return data[0];
}
@Override
@ -434,40 +492,52 @@ public class FtdiSerialDriver implements UsbSerialDriver {
@Override
public boolean getCD() throws IOException {
return false;
return (getModemStatus() & SIO_MODEM_STATUS_RLSD) != 0;
}
@Override
public boolean getCTS() throws IOException {
return false;
return (getModemStatus() & SIO_MODEM_STATUS_CTS) != 0;
}
@Override
public boolean getDSR() throws IOException {
return false;
return (getModemStatus() & SIO_MODEM_STATUS_DSR) != 0;
}
@Override
public boolean getDTR() throws IOException {
return false;
return mDtrState;
}
@Override
public void setDTR(boolean value) throws IOException {
int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_MODEM_CTRL_REQUEST,
value ? SIO_SET_DTR_HIGH : SIO_SET_DTR_LOW, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
if (result != 0) {
throw new IOException("Set DTR failed: result=" + result);
}
mDtrState = value;
}
@Override
public boolean getRI() throws IOException {
return false;
return (getModemStatus() & SIO_MODEM_STATUS_RI) != 0;
}
@Override
public boolean getRTS() throws IOException {
return false;
return mRtsState;
}
@Override
public void setRTS(boolean value) throws IOException {
int result = mConnection.controlTransfer(FTDI_DEVICE_OUT_REQTYPE, SIO_MODEM_CTRL_REQUEST,
value ? SIO_SET_RTS_HIGH : SIO_SET_RTS_LOW, 0 /* index */, null, 0, USB_WRITE_TIMEOUT_MILLIS);
if (result != 0) {
throw new IOException("Set DTR failed: result=" + result);
}
mRtsState = value;
}
@Override