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allwpilib/wpilibj/wpilibJavaJNI/lib/SerialPortJNI.cpp
Peter Johnson 049be6870c Always initialize status to 0 when calling HAL from JNI. 
The HAL functions often call NI functions that may expect status to be
initialized on entry.  Java does not guarantee direct pointer allocation
memory to be initialized, although that may have been occurring by accident.

Change-Id: I5e3a553f3a7be8de3716ccfc13e6ca1cb4f2a552
2015-09-30 19:20:02 -07:00

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#include <jni.h>
#include <assert.h>
#include "Log.hpp"
#include "edu_wpi_first_wpilibj_hal_SerialPortJNI.h"
#include "HAL/SerialPort.hpp"
// set the logging level
TLogLevel serialJNILogLevel = logWARNING;
#define SERIALJNI_LOG(level) \
if (level > serialJNILogLevel) ; \
else Log().Get(level)
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialInitializePort
* Signature: (BLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialInitializePort
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Calling Serial Initialize";
SERIALJNI_LOG(logDEBUG) << "Port = " << (jint) port;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialInitializePort(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetBaudRate
* Signature: (BILjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetBaudRate
(JNIEnv * env, jclass, jbyte port, jint rate, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Baud Rate";
SERIALJNI_LOG(logDEBUG) << "Baud: " << rate;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetBaudRate(port, rate, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetDataBits
* Signature: (BBLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetDataBits
(JNIEnv * env, jclass, jbyte port, jbyte bits, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Data Bits";
SERIALJNI_LOG(logDEBUG) << "Data Bits: " << bits;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetDataBits(port, bits, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetParity
* Signature: (BBLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetParity
(JNIEnv * env, jclass, jbyte port, jbyte parity, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Parity";
SERIALJNI_LOG(logDEBUG) << "Parity: " << parity;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetParity(port, parity, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetStopBits
* Signature: (BBLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetStopBits
(JNIEnv * env, jclass, jbyte port, jbyte bits, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Stop Bits";
SERIALJNI_LOG(logDEBUG) << "Stop Bits: " << bits;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetStopBits(port, bits, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetWriteMode
* Signature: (BBLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetWriteMode
(JNIEnv * env, jclass, jbyte port, jbyte mode, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Write Mode";
SERIALJNI_LOG(logDEBUG) << "Write mode: " << mode;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetWriteMode(port, mode, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetFlowControl
* Signature: (BBLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetFlowControl
(JNIEnv * env, jclass, jbyte port, jbyte flow, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Flow Control";
SERIALJNI_LOG(logDEBUG) << "Flow Control: " << flow;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetFlowControl(port, flow, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetTimeout
* Signature: (BFLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetTimeout
(JNIEnv * env, jclass, jbyte port, jfloat timeout, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Timeout";
SERIALJNI_LOG(logDEBUG) << "Timeout: " << timeout;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetTimeout(port, timeout, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialEnableTermination
* Signature: (BCLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialEnableTermination
(JNIEnv * env, jclass, jbyte port, jchar terminator, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Enable Termination";
SERIALJNI_LOG(logDEBUG) << "Terminator: " << terminator;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialEnableTermination(port, terminator, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialDisableTermination
* Signature: (BLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialDisableTermination
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Disable termination";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialDisableTermination(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetReadBufferSize
* Signature: (BILjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetReadBufferSize
(JNIEnv * env, jclass, jbyte port, jint size, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Read Buffer Size";
SERIALJNI_LOG(logDEBUG) << "Size: " << size;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetReadBufferSize(port, size, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialSetWriteBufferSize
* Signature: (BILjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialSetWriteBufferSize
(JNIEnv * env, jclass, jbyte port, jint size, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Setting Serial Write Buffer Size";
SERIALJNI_LOG(logDEBUG) << "Size: " << size;
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialSetWriteBufferSize(port, size, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialGetBytesRecieved
* Signature: (BLjava/nio/IntBuffer;)I
*/
JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialGetBytesRecieved
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Get Bytes Received";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
jint retVal = serialGetBytesReceived(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
return retVal;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialRead
* Signature: (BLjava/nio/ByteBuffer;ILjava/nio/IntBuffer;)I
*/
JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialRead
(JNIEnv * env, jclass, jbyte port, jobject dataReceived, jint size, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Read";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
jbyte * dataReceivedPtr = NULL;
dataReceivedPtr = (jbyte*)env->GetDirectBufferAddress(dataReceived);
*statusPtr = 0;
jint retVal = serialRead(port, (char*)dataReceivedPtr, size, statusPtr);
SERIALJNI_LOG(logDEBUG) << "ReturnValue = " << retVal;
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
return retVal;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialWrite
* Signature: (BLjava/nio/ByteBuffer;ILjava/nio/IntBuffer;)I
*/
JNIEXPORT jint JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialWrite
(JNIEnv * env, jclass, jbyte port, jobject dataToSend, jint size, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Write";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
jbyte * dataToSendPtr = NULL;
if(dataToSend != 0){
dataToSendPtr = (jbyte*)env->GetDirectBufferAddress(dataToSend);
}
*statusPtr = 0;
jint retVal = serialWrite(port, (const char*)dataToSendPtr, size, statusPtr);
SERIALJNI_LOG(logDEBUG) << "ReturnValue = " << retVal;
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
return retVal;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialFlush
* Signature: (BLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialFlush
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Flush";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialFlush(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialClear
* Signature: (BLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialClear
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Clear";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialClear(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
/*
* Class: edu_wpi_first_wpilibj_hal_SerialPortJNI
* Method: serialClose
* Signature: (BLjava/nio/IntBuffer;)V
*/
JNIEXPORT void JNICALL Java_edu_wpi_first_wpilibj_hal_SerialPortJNI_serialClose
(JNIEnv * env, jclass, jbyte port, jobject status)
{
SERIALJNI_LOG(logDEBUG) << "Serial Close";
jint * statusPtr = (jint*)env->GetDirectBufferAddress(status);
*statusPtr = 0;
serialClose(port, statusPtr);
SERIALJNI_LOG(logDEBUG) << "Status = " << *statusPtr;
}
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