/**
* Setup network protocol filter(s) to selectively restrict or limit messages received. Then purge
* the PassThru device's receive buffer.
*
* @param channelId - handle to the open communications channel
* @param mask - used to isolate the receive message header section(s) of interest
* @param pattern - a message pattern to compare with the receive messages
* @return the message filter ID to be used to later stop the filter
*/
public int startPassMsgFilter(int channelId, byte mask, byte pattern) {
PASSTHRU_MSG maskMsg = passThruMessage(mask);
PASSTHRU_MSG patternMsg = passThruMessage(pattern);
NativeLongByReference msgId = new NativeLongByReference();
msgId.setValue(new NativeLong(0));
NativeLong ret =
lib.PassThruStartMsgFilter(
new NativeLong(channelId),
new NativeLong(Filter.PASS_FILTER.getValue()),
maskMsg.getPointer(),
patternMsg.getPointer(),
null,
msgId);
if (ret.intValue() != Status.NOERROR.getValue())
handleError("PassThruStartMsgFilter", ret.intValue());
ret =
lib.PassThruIoctl(
new NativeLong(channelId),
new NativeLong(IOCtl.CLEAR_RX_BUFFER.getValue()),
null,
null);
if (ret.intValue() != Status.NOERROR.getValue())
handleError("PassThruIoctl (CLEAR_RX_BUFFER)", ret.intValue());
return msgId.getValue().intValue();
}
/**
* Configures various PassThru parameters.
*
* @param channelId - handle to the open communications channel
* @param items - values of multiple parameters can be set in an array of ConfigItem
*/
public void setConfig(int channelId, ConfigItem... items) {
if (items.length == 0) return;
SCONFIG[] sConfigs = sConfigs(items);
SCONFIG_LIST list = sConfigList(sConfigs);
NativeLong ioctlID = new NativeLong();
ioctlID.setValue(IOCtl.SET_CONFIG.getValue());
NativeLong ret = lib.PassThruIoctl(new NativeLong(channelId), ioctlID, list.getPointer(), null);
if (ret.intValue() != Status.NOERROR.getValue())
handleError("PassThruIoctl (SET_CONFIG)", ret.intValue());
}
/**
* Retrieve various PassThru configuration parameters.
*
* @param channelId - handle to the open communications channel
* @param parameters - values of multiple parameters can be retrieved by setting an array of
* integer parameter IDs
* @return an array of <b>ConfigItem</b>
* @see ConfigItem
*/
public ConfigItem[] getConfig(int channelId, int... parameters) {
if (parameters.length == 0) return new ConfigItem[0];
SCONFIG[] sConfigs = sConfigs(parameters);
SCONFIG_LIST input = sConfigList(sConfigs);
NativeLong ioctlID = new NativeLong();
ioctlID.setValue(IOCtl.GET_CONFIG.getValue());
NativeLong ret =
lib.PassThruIoctl(new NativeLong(channelId), ioctlID, input.getPointer(), null);
if (ret.intValue() != Status.NOERROR.getValue())
handleError("PassThruIoctl (GET_CONFIG)", ret.intValue());
return configItems(input);
}
/**
* This function reads the battery voltage on pin 16 of the J2534 interface.
*
* @param channelId - handle to the open communications channel
* @return battery voltage in VDC
*/
public double getVbattery(int channelId) {
NativeLongByReference vBatt = new NativeLongByReference();
NativeLong ret =
lib.PassThruIoctl(
new NativeLong(channelId),
new NativeLong(IOCtl.READ_VBATT.getValue()),
null,
vBatt.getPointer());
if (ret.intValue() != Status.NOERROR.getValue()) handleError("PassThruIoctl", ret.intValue());
LOGGER.trace("Ioctl result: " + vBatt.getValue().longValue());
double response = vBatt.getValue().doubleValue() / 1000;
return response;
}
/**
* This function performs an ISO14230 fast initialization sequence.
*
* @param channelId - handle to the open communications channel
* @param input - start message to be transmitted to the vehicle network
* @return response - response upon a successful initialization
*/
public byte[] fastInit(int channelId, byte[] input) {
PASSTHRU_MSG inMsg = passThruMessage(input);
PASSTHRU_MSG outMsg = passThruMessage();
LOGGER.trace("Ioctl inMsg: " + toString(inMsg));
NativeLong ret =
lib.PassThruIoctl(
new NativeLong(channelId),
new NativeLong(IOCtl.FAST_INIT.value),
inMsg.getPointer(),
outMsg.getPointer());
if (ret.intValue() != Status.NOERROR.getValue()) handleError("PassThruIoctl", ret.intValue());
outMsg.read();
LOGGER.trace("Ioctl outMsg: " + toString(outMsg));
byte[] response = new byte[outMsg.dataSize.intValue()];
arraycopy(outMsg.data, 0, response, 0, outMsg.dataSize.intValue());
return response;
}
