diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. 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diff --git a/README.md b/README.md index ad2fd84..08e3293 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,2 @@ -# jserialcomm +# jSerialComm Platform-independent serial port access for Java diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..b991248 --- /dev/null +++ b/build.gradle @@ -0,0 +1,93 @@ +apply plugin: 'java' +apply plugin: 'eclipse' +apply plugin: 'maven' +apply plugin: 'signing' + +group = 'com.fazecast.jSerialComm' +archivesBaseName = 'jSerialComm' +version = '1.0.0' + +sourceCompatibility = 1.6 +targetCompatibility = 1.6 +//compileJava.options.bootClasspath = "C:/Program Files/Java/jre6/lib/rt.jar" +compileTestJava { +} +processTestResources { +} +testClasses { +} +test { +} + +jar { + manifest { + attributes 'Implementation-Title': 'jSerialComm: Java Serial Communications Library', + 'Implementation-Version': version, + 'Implementation-Vendor': 'Fazecast, Inc.', + 'Sealed': 'true' + } +} + +task javadocJar(type: Jar) { + classifier = 'javadoc' + from javadoc +} + +task sourcesJar(type: Jar) { + classifier = 'sources' + from sourceSets.main.allSource +} + +artifacts { + archives jar, javadocJar, sourcesJar +} + +signing { + sign configurations.archives +} + +uploadArchives { + repositories { + mavenDeployer { + beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) } + + repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") { + authentication(userName: ossrhUsername, password: ossrhPassword) + } + + snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") { + authentication(userName: ossrhUsername, password: ossrhPassword) + } + + pom.project { + name 'jSerialComm' + artifactId 'jSerialComm' + packaging 'jar' + version version + description 'A platform-independent serial communications library for Java.' + url 'http://fazecast.github.io/jSerialComm/' + + scm { + connection 'scm:git:https://github.com/Fazecast/jSerialComm.git' + developerConnection 'scm:git:https://github.com/Fazecast/jSerialComm.git' + url 'https://github.com/Fazecast/jSerialComm' + } + + licenses { + license { + name 'GNU Lesser GPL, Version 3' + url 'http://www.gnu.org/licenses/lgpl.html' + } + } + + developers { + developer { + id 'hedgecrw85' + name 'Will Hedgecock' + email 'will.hedgecock@fazecast.com' + } + } + } + } + } +} diff --git a/src/main/c/Linux/Makefile b/src/main/c/Linux/Makefile new file mode 100644 index 0000000..02a047d --- /dev/null +++ b/src/main/c/Linux/Makefile @@ -0,0 +1,78 @@ +# Linux specific library variables +COMPILE := g++ +LINK := g++ +CFLAGS := -fPIC +LDFLAGS := -fPIC -shared +INCLUDES := -I"$(JDK_HOME)/include" -I"$(JDK_HOME)/include/linux" +LIBRARIES := +DELETE := @rm +MKDIR := @mkdir +MOVE := @mv +PRINT := @echo +FULL_CLASS := com.fazecast.jSerialComm.SerialPort +JAVAC := "$(JDK_HOME)/bin/javac" +JAVAH := "$(JDK_HOME)/bin/javah" -jni +JFLAGS := -source 1.6 -target 1.6 -Xlint:-options +LIBRARY_NAME := libjSerialComm.so +SOURCES := SerialPort_Linux.cpp +JAVA_SOURCE_DIR = ../../../../src/main/java/com/fazecast/jSerialComm +RESOURCE_DIR = ../../../../src/main/resources/Linux +BUILD_DIR = ../../../../bin/Linux +JAVA_CLASS_DIR = $(BUILD_DIR)/../com/fazecast/jSerialComm +OBJECTSx86 = $(BUILD_DIR)/x86/$(SOURCES:.cpp=.o) +OBJECTSx86_64 = $(BUILD_DIR)/x86_64/$(SOURCES:.cpp=.o) +JNI_HEADER = ../com_fazecast_jSerialComm_SerialPort.h +JAVA_CLASS = $(JAVA_CLASS_DIR)/SerialPort.class + +# Define phony and suffix rules +.PHONY: all linux32 linux64 checkdirs +.SUFFIXES: +.SUFFIXES: .cpp .o .class .java .h + +# Default build target builds both 32 and 64 bit libraries +all : linux32 linux64 + $(DELETE) -rf `readlink -f $(BUILD_DIR)/..` + $(DELETE) -rf ../*.h + +# Builds 32-bit Linux libraries +linux32 : ARCH = -m32 +linux32 : checkdirs $(BUILD_DIR)/x86/$(LIBRARY_NAME) + $(DELETE) -rf $(BUILD_DIR)/x86/*.o + $(MOVE) $(BUILD_DIR)/x86/*.* $(RESOURCE_DIR)/x86 + +# Builds 64-bit Linux libraries +linux64 : ARCH = -m64 +linux64 : checkdirs $(BUILD_DIR)/x86_64/$(LIBRARY_NAME) + $(DELETE) -rf $(BUILD_DIR)/x86_64/*.o + $(MOVE) $(BUILD_DIR)/x86_64/*.* $(RESOURCE_DIR)/x86_64 + +# Rule to create build directories +checkdirs : $(BUILD_DIR)/x86 $(BUILD_DIR)/x86_64 $(JAVA_CLASS_DIR) +$(BUILD_DIR)/x86 : + $(MKDIR) -p $@ +$(BUILD_DIR)/x86_64 : + $(MKDIR) -p $@ +$(JAVA_CLASS_DIR) : + $(MKDIR) -p $@ + +# Rule to build 32-bit library +$(BUILD_DIR)/x86/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86) + $(LINK) $(LDFLAGS) $(ARCH) -o $@ $(OBJECTSx86) $(LIBRARIES) + +# Rule to build 64-bit library +$(BUILD_DIR)/x86_64/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86_64) + $(LINK) $(LDFLAGS) $(ARCH) -o $@ $(OBJECTSx86_64) $(LIBRARIES) + +# Suffix rules to get from *.cpp -> *.o +$(BUILD_DIR)/x86/%.o : %.cpp + $(COMPILE) $(INCLUDES) $(CFLAGS) $(ARCH) -c $< -o $@ +$(BUILD_DIR)/x86_64/%.o : %.cpp + $(COMPILE) $(INCLUDES) $(CFLAGS) $(ARCH) -c $< -o $@ + +# Rule to build JNI header file +$(JNI_HEADER) : $(JAVA_CLASS) + $(JAVAH) -d .. -classpath $(JAVA_CLASS_DIR)/../../.. $(FULL_CLASS) + +# Suffix rule to get from *.java -> *.class +$(JAVA_CLASS) : + $(JAVAC) $(JFLAGS) -d $(JAVA_CLASS_DIR)/../../.. $(JAVA_SOURCE_DIR)/$(basename $(notdir $@)).java diff --git a/src/main/c/Linux/SerialPort_Linux.cpp b/src/main/c/Linux/SerialPort_Linux.cpp new file mode 100644 index 0000000..a04b864 --- /dev/null +++ b/src/main/c/Linux/SerialPort_Linux.cpp @@ -0,0 +1,369 @@ +/* + * SerialPort_Linux.cpp + * + * Created on: Feb 25, 2012 + * Last Updated on: Feb 27, 2015 + * Author: Will Hedgecock + * + * Copyright (C) 2012-2015 Fazecast, Inc. + * + * This file is part of jSerialComm. + * + * jSerialComm is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * jSerialComm is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with jSerialComm. If not, see . + */ + +#ifdef __linux__ +#ifndef CMSPAR +#define CMSPAR 010000000000 +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../com_fazecast_jSerialComm_SerialPort.h" + +JNIEXPORT jobjectArray JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCommPorts(JNIEnv *env, jclass serialCommClass) +{ + DIR *serialPortIterator; + struct dirent *serialPortEntry; + int serialPort; + int numValues = -2, numChars, index = 0; + char portString[1024], comPort[1024], pathBase[21] = {"/dev/serial/by-path/"}; + + // Get relevant SerialComm methods and IDs + jmethodID serialCommConstructor = env->GetMethodID(serialCommClass, "", "()V"); + jfieldID portStringID = env->GetFieldID(serialCommClass, "portString", "Ljava/lang/String;"); + jfieldID comPortID = env->GetFieldID(serialCommClass, "comPort", "Ljava/lang/String;"); + + // Enumerate serial ports on machine + if ((serialPortIterator = opendir(pathBase)) == NULL) + return NULL; + while (readdir(serialPortIterator) != NULL) ++numValues; + rewinddir(serialPortIterator); + jobjectArray arrayObject = env->NewObjectArray(numValues, serialCommClass, 0); + while ((serialPortEntry = readdir(serialPortIterator)) != NULL) + { + // Get serial COM value + strcpy(portString, pathBase); + strcpy(portString+20, serialPortEntry->d_name); + if ((numChars = readlink(portString, comPort, sizeof(comPort))) == -1) + continue; + comPort[numChars] = '\0'; + + // Get port name + strcpy(portString, strrchr(comPort, '/') + 1); + strcpy(comPort, "/dev/"); + strcpy(comPort+5, portString); + + // Create new SerialComm object containing the enumerated values + jobject serialCommObject = env->NewObject(serialCommClass, serialCommConstructor); + env->SetObjectField(serialCommObject, portStringID, env->NewStringUTF(portString)); + env->SetObjectField(serialCommObject, comPortID, env->NewStringUTF(comPort)); + + // Add new SerialComm object to array + env->SetObjectArrayElement(arrayObject, index++, serialCommObject); + } + closedir(serialPortIterator); + + return arrayObject; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_openPort(JNIEnv *env, jobject obj) +{ + int fdSerial; + jstring portNameJString = (jstring)env->GetObjectField(obj, env->GetFieldID(env->GetObjectClass(obj), "comPort", "Ljava/lang/String;")); + const char *portName = env->GetStringUTFChars(portNameJString, NULL); + + // Try to open existing serial port with read/write access + if ((fdSerial = open(portName, O_RDWR | O_NOCTTY | O_NONBLOCK)) > 0) + { + // Set port handle in Java structure + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), fdSerial); + + // Configure the port parameters and timeouts + if (Java_com_fazecast_jSerialComm_SerialPort_configPort(env, obj) && Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(env, obj) && + Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(env, obj)) + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_TRUE); + else + { + // Close the port if there was a problem setting the parameters + close(fdSerial); + fdSerial = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + } + + env->ReleaseStringUTFChars(portNameJString, portName); + return (fdSerial == -1) ? JNI_FALSE : JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configPort(JNIEnv *env, jobject obj) +{ + struct termios options; + struct serial_struct serialInfo; + jclass serialCommClass = env->GetObjectClass(obj); + int portFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + + // Set raw-mode to allow the use of tcsetattr() and ioctl() + fcntl(portFD, F_SETFL, 0); + cfmakeraw(&options); + + // Get port parameters from Java class + int baudRate = env->GetIntField(obj, env->GetFieldID(serialCommClass, "baudRate", "I")); + int byteSizeInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "dataBits", "I")); + int stopBitsInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "stopBits", "I")); + int parityInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "parity", "I")); + tcflag_t byteSize = (byteSizeInt == 5) ? CS5 : (byteSizeInt == 6) ? CS6 : (byteSizeInt == 7) ? CS7 : CS8; + tcflag_t stopBits = ((stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_STOP_BIT) || (stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_POINT_FIVE_STOP_BITS)) ? 0 : CSTOPB; + tcflag_t parity = (parityInt == com_fazecast_jSerialComm_SerialPort_NO_PARITY) ? 0 : (parityInt == com_fazecast_jSerialComm_SerialPort_ODD_PARITY) ? (PARENB | PARODD) : (parityInt == com_fazecast_jSerialComm_SerialPort_EVEN_PARITY) ? PARENB : (parityInt == com_fazecast_jSerialComm_SerialPort_MARK_PARITY) ? (PARENB | CMSPAR | PARODD) : (PARENB | CMSPAR); + int flowControl = env->GetIntField(obj, env->GetFieldID(serialCommClass, "flowControl", "I")); + tcflag_t XonXoffInEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_IN_ENABLED) > 0) ? IXOFF : 0; + tcflag_t XonXoffOutEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_OUT_ENABLED) > 0) ? IXON : 0; + + // Retrieve existing port configuration + tcgetattr(portFD, &options); + + // Set updated port parameters + options.c_cflag = (B38400 | byteSize | stopBits | parity | CLOCAL | CREAD); + if (parityInt == com_fazecast_jSerialComm_SerialPort_SPACE_PARITY) + options.c_cflag &= ~PARODD; + options.c_iflag = ((parityInt > 0) ? (INPCK | ISTRIP) : IGNPAR); + options.c_oflag = 0; + options.c_lflag = 0; + + // Apply changes + tcsetattr(portFD, TCSAFLUSH, &options); + ioctl(portFD, TIOCEXCL); // Block non-root users from using this port + + // Allow custom baud rate (only for true serial ports) + ioctl(portFD, TIOCGSERIAL, &serialInfo); + serialInfo.flags = ASYNC_SPD_CUST | ASYNC_LOW_LATENCY; + serialInfo.custom_divisor = serialInfo.baud_base / baudRate; + ioctl(portFD, TIOCSSERIAL, &serialInfo); + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(JNIEnv *env, jobject obj) +{ + struct termios options; + jclass serialCommClass = env->GetObjectClass(obj); + int portFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + + // Get port parameters from Java class + int flowControl = env->GetIntField(obj, env->GetFieldID(serialCommClass, "flowControl", "I")); + tcflag_t CTSRTSEnabled = (((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_CTS_ENABLED) > 0) || + ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_RTS_ENABLED) > 0)) ? CRTSCTS : 0; + tcflag_t XonXoffInEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_IN_ENABLED) > 0) ? IXOFF : 0; + tcflag_t XonXoffOutEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_OUT_ENABLED) > 0) ? IXON : 0; + + // Retrieve existing port configuration + tcgetattr(portFD, &options); + + // Set updated port parameters + options.c_cflag |= CTSRTSEnabled; + options.c_iflag |= XonXoffInEnabled | XonXoffOutEnabled; + options.c_oflag = 0; + options.c_lflag = 0; + + // Apply changes + tcsetattr(portFD, TCSAFLUSH, &options); + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(JNIEnv *env, jobject obj) +{ + // Get port timeouts from Java class + jclass serialCommClass = env->GetObjectClass(obj); + int serialFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + int timeoutMode = env->GetIntField(obj, env->GetFieldID(serialCommClass, "timeoutMode", "I")); + int readTimeout = env->GetIntField(obj, env->GetFieldID(serialCommClass, "readTimeout", "I")); + + // Retrieve existing port configuration + struct termios options; + tcgetattr(serialFD, &options); + int flags = fcntl(serialFD, F_GETFL); + + // Set updated port timeouts + if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING) > 0) && (readTimeout > 0)) // Read Semi-blocking with timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = readTimeout / 100; + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING) > 0) // Read Semi-blocking without timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 1; + options.c_cc[VTIME] = 0; + } + else if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) && (readTimeout > 0)) // Read Blocking with timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = readTimeout / 100; + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) // Read Blocking without timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 1; + options.c_cc[VTIME] = 0; + } + else // Non-blocking + { + flags |= O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = 0; + } + + // Apply changes + fcntl(serialFD, F_SETFL, flags); + return (tcsetattr(serialFD, TCSAFLUSH, &options) == 0) ? JNI_TRUE : JNI_FALSE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_closePort(JNIEnv *env, jobject obj) +{ + // Close port + int portFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + close(portFD); + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + + return JNI_TRUE; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_bytesAvailable(JNIEnv *env, jobject obj) +{ + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + int numBytesAvailable; + + ioctl(serialPortFD, FIONREAD, &numBytesAvailable); + + return numBytesAvailable; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_readBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToRead) +{ + // Get port handle and read timeout from Java class + char* readBuffer = (char*)malloc(bytesToRead); + jclass serialCommClass = env->GetObjectClass(obj); + int timeoutMode = env->GetIntField(obj, env->GetFieldID(serialCommClass, "timeoutMode", "I")); + int readTimeout = env->GetIntField(obj, env->GetFieldID(serialCommClass, "readTimeout", "I")); + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + int numBytesRead, numBytesReadTotal = 0, bytesRemaining = bytesToRead; + + // Infinite blocking mode specified, don't return until we have completely finished the read + if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) && (readTimeout == 0)) + { + // While there are more bytes we are supposed to read + while (bytesRemaining > 0) + { + if ((numBytesRead = read(serialPortFD, readBuffer+numBytesReadTotal, bytesRemaining)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + + // Fix index variables + numBytesReadTotal += numBytesRead; + bytesRemaining -= numBytesRead; + } + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) // Blocking mode, but not indefinitely + { + // Get current system time + struct timeval expireTime, currTime; + gettimeofday(&expireTime, NULL); + expireTime.tv_usec += (readTimeout * 1000); + if (expireTime.tv_usec > 1000000) + { + expireTime.tv_sec += (expireTime.tv_usec * 0.000001); + expireTime.tv_usec = (expireTime.tv_usec % 1000000); + } + + // While there are more bytes we are supposed to read and the timeout has not elapsed + do + { + if ((numBytesRead = read(serialPortFD, readBuffer+numBytesReadTotal, bytesRemaining)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + + // Fix index variables + numBytesReadTotal += numBytesRead; + bytesRemaining -= numBytesRead; + + // Get current system time + gettimeofday(&currTime, NULL); + } while ((bytesRemaining > 0) && ((expireTime.tv_sec > currTime.tv_sec) || + ((expireTime.tv_sec == currTime.tv_sec) && (expireTime.tv_usec > currTime.tv_usec)))); + } + else // Semi- or non-blocking specified + { + // Read from port + if ((numBytesRead = read(serialPortFD, readBuffer, bytesToRead)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + else + numBytesReadTotal = numBytesRead; + } + + // Return number of bytes read if successful + env->SetByteArrayRegion(buffer, 0, numBytesReadTotal, (jbyte*)readBuffer); + free(readBuffer); + return (numBytesRead == -1) ? -1 : numBytesReadTotal; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_writeBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToWrite) +{ + jbyte *writeBuffer = env->GetByteArrayElements(buffer, 0); + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + int numBytesWritten; + + // Write to port + if ((numBytesWritten = write(serialPortFD, writeBuffer, bytesToWrite)) == -1) + { + // Problem writing, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + + // Return number of bytes written if successful + env->ReleaseByteArrayElements(buffer, writeBuffer, JNI_ABORT); + return numBytesWritten; +} + +#endif diff --git a/src/main/c/OSX/Makefile b/src/main/c/OSX/Makefile new file mode 100644 index 0000000..c0405ca --- /dev/null +++ b/src/main/c/OSX/Makefile @@ -0,0 +1,78 @@ +# OSX specific library variables +COMPILE := g++ +LINK := g++ +CFLAGS := +LDFLAGS := -dynamiclib +INCLUDES := -I"/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers" +LIBRARIES := -framework Cocoa -framework IOKit -framework JavaVM +DELETE := @rm +MKDIR := @mkdir +MOVE := @mv +PRINT := @echo +FULL_CLASS := com.fazecast.jSerialComm.SerialPort +JAVAC := "$(JDK_HOME)/bin/javac" +JAVAH := "$(JDK_HOME)/bin/javah" -jni +JFLAGS := -source 1.6 -target 1.6 -Xlint:-options +LIBRARY_NAME := libjSerialComm.jnilib +SOURCES := SerialPort_OSX.cpp +JAVA_SOURCE_DIR = ../../../../src/main/java/com/fazecast/jSerialComm +RESOURCE_DIR = ../../../../src/main/resources/OSX +BUILD_DIR = ../../../../bin/OSX +JAVA_CLASS_DIR = $(BUILD_DIR)/../com/fazecast/jSerialComm +OBJECTSx86 = $(BUILD_DIR)/x86/$(SOURCES:.cpp=.o) +OBJECTSx86_64 = $(BUILD_DIR)/x86_64/$(SOURCES:.cpp=.o) +JNI_HEADER = ../com_fazecast_jSerialComm_SerialPort.h +JAVA_CLASS = $(JAVA_CLASS_DIR)/SerialPort.class + +# Define phony and suffix rules +.PHONY: all osx32 osx64 checkdirs +.SUFFIXES: +.SUFFIXES: .cpp .o .class .java .h + +# Default build target builds both 32 and 64 bit libraries +all : osx32 osx64 + $(DELETE) -rf `readlink -f $(BUILD_DIR)/..` + $(DELETE) -rf ../*.h + +# Builds 32-bit OSX libraries +osx32 : ARCH = -m32 +osx32 : checkdirs $(BUILD_DIR)/x86/$(LIBRARY_NAME) + $(DELETE) -rf $(BUILD_DIR)/x86/*.o + $(MOVE) $(BUILD_DIR)/x86/*.* $(RESOURCE_DIR)/x86 + +# Builds 64-bit OSX libraries +osx64 : ARCH = -m64 +osx64 : checkdirs $(BUILD_DIR)/x86_64/$(LIBRARY_NAME) + $(DELETE) -rf $(BUILD_DIR)/x86_64/*.o + $(MOVE) $(BUILD_DIR)/x86_64/*.* $(RESOURCE_DIR)/x86_64 + +# Rule to create build directories +checkdirs : $(BUILD_DIR)/x86 $(BUILD_DIR)/x86_64 $(JAVA_CLASS_DIR) +$(BUILD_DIR)/x86 : + $(MKDIR) -p $@ +$(BUILD_DIR)/x86_64 : + $(MKDIR) -p $@ +$(JAVA_CLASS_DIR) : + $(MKDIR) -p $@ + +# Rule to build 32-bit library +$(BUILD_DIR)/x86/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86) + $(LINK) $(LDFLAGS) $(ARCH) -o $@ $(OBJECTSx86) $(LIBRARIES) + +# Rule to build 64-bit library +$(BUILD_DIR)/x86_64/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86_64) + $(LINK) $(LDFLAGS) $(ARCH) -o $@ $(OBJECTSx86_64) $(LIBRARIES) + +# Suffix rules to get from *.cpp -> *.o +$(BUILD_DIR)/x86/%.o : %.cpp + $(COMPILE) $(INCLUDES) $(CFLAGS) $(ARCH) -c $< -o $@ +$(BUILD_DIR)/x86_64/%.o : %.cpp + $(COMPILE) $(INCLUDES) $(CFLAGS) $(ARCH) -c $< -o $@ + +# Rule to build JNI header file +$(JNI_HEADER) : $(JAVA_CLASS) + $(JAVAH) -d .. -classpath $(JAVA_CLASS_DIR)/../../.. $(FULL_CLASS) + +# Suffix rule to get from *.java -> *.class +$(JAVA_CLASS) : + $(JAVAC) $(JFLAGS) -d $(JAVA_CLASS_DIR)/../../.. $(JAVA_SOURCE_DIR)/$(basename $(notdir $@)).java diff --git a/src/main/c/OSX/SerialPort_OSX.cpp b/src/main/c/OSX/SerialPort_OSX.cpp new file mode 100644 index 0000000..a8d1874 --- /dev/null +++ b/src/main/c/OSX/SerialPort_OSX.cpp @@ -0,0 +1,355 @@ +/* + * SerialPort_OSX.cpp + * + * Created on: Feb 25, 2012 + * Last Updated on: Feb 27, 2015 + * Author: Will Hedgecock + * + * Copyright (C) 2012-2015 Fazecast, Inc. + * + * This file is part of jSerialComm. + * + * jSerialComm is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * jSerialComm is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with jSerialComm. If not, see . + */ + +#ifdef __APPLE__ +#ifndef CMSPAR +#define CMSPAR 010000000000 +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../com_fazecast_jSerialComm_SerialPort.h" + +JNIEXPORT jobjectArray JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCommPorts(JNIEnv *env, jclass serialCommClass) +{ + io_object_t serialPort; + io_iterator_t serialPortIterator; + int numValues = 0; + char portString[1024], comPort[1024]; + + // Get relevant SerialComm methods and IDs + jmethodID serialCommConstructor = env->GetMethodID(serialCommClass, "", "()V"); + jfieldID portStringID = env->GetFieldID(serialCommClass, "portString", "Ljava/lang/String;"); + jfieldID comPortID = env->GetFieldID(serialCommClass, "comPort", "Ljava/lang/String;"); + + // Enumerate serial ports on machine + IOServiceGetMatchingServices(kIOMasterPortDefault, IOServiceMatching(kIOSerialBSDServiceValue), &serialPortIterator); + while (IOIteratorNext(serialPortIterator)) ++numValues; + IOIteratorReset(serialPortIterator); + jobjectArray arrayObject = env->NewObjectArray(numValues, serialCommClass, 0); + for (int i = 0; i < numValues; ++i) + { + // Get serial port name and COM value + serialPort = IOIteratorNext(serialPortIterator); + CFStringRef portStringRef = (CFStringRef)IORegistryEntryCreateCFProperty(serialPort, CFSTR(kIOTTYDeviceKey), kCFAllocatorDefault, 0); + CFStringRef comPortRef = (CFStringRef)IORegistryEntryCreateCFProperty(serialPort, CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); + CFStringGetCString(portStringRef, portString, sizeof(portString), kCFStringEncodingUTF8); + CFStringGetCString(comPortRef, comPort, sizeof(comPort), kCFStringEncodingUTF8); + CFRelease(portStringRef); + CFRelease(comPortRef); + + // Create new SerialComm object containing the enumerated values + jobject serialCommObject = env->NewObject(serialCommClass, serialCommConstructor); + env->SetObjectField(serialCommObject, portStringID, env->NewStringUTF(portString)); + env->SetObjectField(serialCommObject, comPortID, env->NewStringUTF(comPort)); + + // Add new SerialComm object to array + env->SetObjectArrayElement(arrayObject, i, serialCommObject); + IOObjectRelease(serialPort); + } + IOObjectRelease(serialPortIterator); + + return arrayObject; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_openPort(JNIEnv *env, jobject obj) +{ + int fdSerial; + jstring portNameJString = (jstring)env->GetObjectField(obj, env->GetFieldID(env->GetObjectClass(obj), "comPort", "Ljava/lang/String;")); + const char *portName = env->GetStringUTFChars(portNameJString, NULL); + + // Try to open existing serial port with read/write access + if ((fdSerial = open(portName, O_RDWR | O_NOCTTY | O_NONBLOCK)) > 0) + { + // Set port handle in Java structure + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), fdSerial); + + // Configure the port parameters and timeouts + if (Java_com_fazecast_jSerialComm_SerialPort_configPort(env, obj) && Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(env, obj) && + Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(env, obj)) + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_TRUE); + else + { + // Close the port if there was a problem setting the parameters + close(fdSerial); + fdSerial = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + } + + env->ReleaseStringUTFChars(portNameJString, portName); + return (fdSerial == -1) ? JNI_FALSE : JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configPort(JNIEnv *env, jobject obj) +{ + struct termios options; + jclass serialCommClass = env->GetObjectClass(obj); + int portFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + + // Set raw-mode to allow the use of tcsetattr() and ioctl() + fcntl(portFD, F_SETFL, 0); + cfmakeraw(&options); + + // Get port parameters from Java class + speed_t baudRate = env->GetIntField(obj, env->GetFieldID(serialCommClass, "baudRate", "I")); + int byteSizeInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "dataBits", "I")); + int stopBitsInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "stopBits", "I")); + int parityInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "parity", "I")); + tcflag_t byteSize = (byteSizeInt == 5) ? CS5 : (byteSizeInt == 6) ? CS6 : (byteSizeInt == 7) ? CS7 : CS8; + tcflag_t stopBits = ((stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_STOP_BIT) || (stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_POINT_FIVE_STOP_BITS)) ? 0 : CSTOPB; + tcflag_t parity = (parityInt == com_fazecast_jSerialComm_SerialPort_NO_PARITY) ? 0 : (parityInt == com_fazecast_jSerialComm_SerialPort_ODD_PARITY) ? (PARENB | PARODD) : (parityInt == com_fazecast_jSerialComm_SerialPort_EVEN_PARITY) ? PARENB : (parityInt == com_fazecast_jSerialComm_SerialPort_MARK_PARITY) ? (PARENB | CMSPAR | PARODD) : (PARENB | CMSPAR); + + // Retrieve existing port configuration + tcgetattr(portFD, &options); + + // Set updated port parameters + options.c_cflag = (B38400 | byteSize | stopBits | parity | CLOCAL | CREAD); + if (parityInt == com_fazecast_jSerialComm_SerialPort_SPACE_PARITY) + options.c_cflag &= ~PARODD; + options.c_iflag = ((parityInt > 0) ? (INPCK | ISTRIP) : IGNPAR); + options.c_oflag = 0; + options.c_lflag = 0; + + // Apply changes + tcsetattr(portFD, TCSAFLUSH, &options); + ioctl(portFD, TIOCEXCL); // Block non-root users from using this port + return (ioctl(portFD, IOSSIOSPEED, &baudRate) == -1) ? JNI_FALSE : JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(JNIEnv *env, jobject obj) +{ + struct termios options; + jclass serialCommClass = env->GetObjectClass(obj); + int portFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + + // Get port parameters from Java class + int flowControl = env->GetIntField(obj, env->GetFieldID(serialCommClass, "flowControl", "I")); + tcflag_t CTSRTSEnabled = (((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_CTS_ENABLED) > 0) || + ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_RTS_ENABLED) > 0)) ? CRTSCTS : 0; + tcflag_t XonXoffInEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_IN_ENABLED) > 0) ? IXOFF : 0; + tcflag_t XonXoffOutEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_OUT_ENABLED) > 0) ? IXON : 0; + + // Retrieve existing port configuration + tcgetattr(portFD, &options); + + // Set updated port parameters + options.c_cflag |= CTSRTSEnabled; + options.c_iflag |= XonXoffInEnabled | XonXoffOutEnabled; + options.c_oflag = 0; + options.c_lflag = 0; + + // Apply changes + tcsetattr(portFD, TCSAFLUSH, &options); + return JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(JNIEnv *env, jobject obj) +{ + // Get port timeouts from Java class + jclass serialCommClass = env->GetObjectClass(obj); + int serialFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + int timeoutMode = env->GetIntField(obj, env->GetFieldID(serialCommClass, "timeoutMode", "I")); + int readTimeout = env->GetIntField(obj, env->GetFieldID(serialCommClass, "readTimeout", "I")); + + // Retrieve existing port configuration + struct termios options; + tcgetattr(serialFD, &options); + int flags = fcntl(serialFD, F_GETFL); + + // Set updated port timeouts + if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING) > 0) && (readTimeout > 0)) // Read Semi-blocking with timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = readTimeout / 100; + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING) > 0) // Read Semi-blocking without timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 1; + options.c_cc[VTIME] = 0; + } + else if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) && (readTimeout > 0)) // Read Blocking with timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = readTimeout / 100; + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) // Read Blocking without timeout + { + flags &= ~O_NONBLOCK; + options.c_cc[VMIN] = 1; + options.c_cc[VTIME] = 0; + } + else // Non-blocking + { + flags |= O_NONBLOCK; + options.c_cc[VMIN] = 0; + options.c_cc[VTIME] = 0; + } + + // Apply changes + fcntl(serialFD, F_SETFL, flags); + return (tcsetattr(serialFD, TCSAFLUSH, &options) == 0) ? JNI_TRUE : JNI_FALSE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_closePort(JNIEnv *env, jobject obj) +{ + // Close port + int portFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + close(portFD); + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + + return JNI_TRUE; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_bytesAvailable(JNIEnv *env, jobject obj) +{ + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + int numBytesAvailable; + + ioctl(serialPortFD, FIONREAD, &numBytesAvailable); + + return numBytesAvailable; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_readBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToRead) +{ + // Get port handle and read timeout from Java class + char* readBuffer = (char*)malloc(bytesToRead); + jclass serialCommClass = env->GetObjectClass(obj); + int timeoutMode = env->GetIntField(obj, env->GetFieldID(serialCommClass, "timeoutMode", "I")); + int readTimeout = env->GetIntField(obj, env->GetFieldID(serialCommClass, "readTimeout", "I")); + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + int numBytesRead, numBytesReadTotal = 0, bytesRemaining = bytesToRead; + + // Infinite blocking mode specified, don't return until we have completely finished the read + if (((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) && (readTimeout == 0)) + { + // While there are more bytes we are supposed to read + while (bytesRemaining > 0) + { + if ((numBytesRead = read(serialPortFD, readBuffer+numBytesReadTotal, bytesRemaining)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + + // Fix index variables + numBytesReadTotal += numBytesRead; + bytesRemaining -= numBytesRead; + } + } + else if ((timeoutMode & com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING) > 0) // Blocking mode, but not indefinitely + { + // Get current system time + struct timeval expireTime, currTime; + gettimeofday(&expireTime, NULL); + expireTime.tv_usec += (readTimeout * 1000); + if (expireTime.tv_usec > 1000000) + { + expireTime.tv_sec += (expireTime.tv_usec * 0.000001); + expireTime.tv_usec = (expireTime.tv_usec % 1000000); + } + + // While there are more bytes we are supposed to read and the timeout has not elapsed + do + { + if ((numBytesRead = read(serialPortFD, readBuffer+numBytesReadTotal, bytesRemaining)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + + // Fix index variables + numBytesReadTotal += numBytesRead; + bytesRemaining -= numBytesRead; + + // Get current system time + gettimeofday(&currTime, NULL); + } while ((bytesRemaining > 0) && ((expireTime.tv_sec > currTime.tv_sec) || + ((expireTime.tv_sec == currTime.tv_sec) && (expireTime.tv_usec > currTime.tv_usec)))); + } + else // Semi- or non-blocking specified + { + // Read from port + if ((numBytesRead = read(serialPortFD, readBuffer, bytesToRead)) == -1) + { + // Problem reading, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + else + numBytesReadTotal = numBytesRead; + } + + // Return number of bytes read if successful + env->SetByteArrayRegion(buffer, 0, numBytesReadTotal, (jbyte*)readBuffer); + free(readBuffer); + return (numBytesRead == -1) ? -1 : numBytesReadTotal; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_writeBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToWrite) +{ + jbyte *writeBuffer = env->GetByteArrayElements(buffer, 0); + int serialPortFD = (int)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + int numBytesWritten; + + // Write to port + if ((numBytesWritten = write(serialPortFD, writeBuffer, bytesToWrite)) == -1) + { + // Problem writing, close port + close(serialPortFD); + serialPortFD = -1; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), -1l); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + + // Return number of bytes written if successful + env->ReleaseByteArrayElements(buffer, writeBuffer, JNI_ABORT); + return numBytesWritten; +} + +#endif diff --git a/src/main/c/Windows/Makefile b/src/main/c/Windows/Makefile new file mode 100644 index 0000000..ad6178e --- /dev/null +++ b/src/main/c/Windows/Makefile @@ -0,0 +1,86 @@ +## Windows specific library variables +COMPILE = cl +LINK = link +CFLAGS = /c /O2 /GF /GL /MT /EHsc /fp:precise /J /nologo /TP +LDFLAGS = /DLL /LTCG /NOASSEMBLY /NOLOGO +INCLUDES = /I"$(JDK_HOME)/include" /I"$(JDK_HOME)/include/win32" +LIBRARIES = Advapi32.lib +DELETE = @del /q /f +RMDIR = @rmdir /q /s +MKDIR = @mkdir +MOVE = @move /y +PRINT = @echo +FULL_CLASS = com.fazecast.jSerialComm.SerialPort +JAVAC = "$(JDK_HOME)/bin/javac" +JAVAH = "$(JDK_HOME)/bin/javah" -jni +JFLAGS = -source 1.6 -target 1.6 -Xlint:-options +LIBRARY_NAME = jSerialComm.dll +SOURCES = SerialPort_Windows.cpp +JAVA_SOURCE_DIR = ../../../../src/main/java/com/fazecast/jSerialComm +RESOURCE_DIR = ../../../../src/main/resources/Windows +BUILD_DIR = ../../../../bin/Windows +JAVA_CLASS_DIR = $(BUILD_DIR)/../com/fazecast/jSerialComm +OBJECTSx86 = $(BUILD_DIR)/x86/$(SOURCES:.cpp=.o) +OBJECTSx86_64 = $(BUILD_DIR)/x86_64/$(SOURCES:.cpp=.o) +JNI_HEADER = ../com_fazecast_jSerialComm_SerialPort.h +JAVA_CLASS = $(JAVA_CLASS_DIR)/SerialPort.class + +# Define phony and suffix rules +.PHONY: all win32 win64 checkdirs clean +.SUFFIXES: +.SUFFIXES: .cpp .o .class .java .h + +# Default build target not possible due to different architecture compilers +all : + $(PRINT). + $(PRINT) Must specify a target (either win32 or win64), but not both at the same time since different versions of the Microsoft Compiler are required for difference architectures. + $(PRINT). + $(PRINT) NOTE: Before attempting to use this Makefile, make sure that you have called 'vcvarsall.bat' for your intended architecture. This file can normally be found in "C:/Program Files (x86)/Microsoft Visual Studio [version]/VC/". + $(PRINT). + $(PRINT) Example: To build 64-bit Windows libraries, you would call: + $(PRINT) C:/Program Files (x86)/Microsoft Visual Studio 12.0/VC/vcvarsall.bat x64 + $(PRINT) make (or mingw32-make) + $(PRINT). + +# Builds 32-bit Windows libraries +win32 : checkdirs $(BUILD_DIR)/x86/$(LIBRARY_NAME) + $(DELETE) "$(BUILD_DIR)"\\x86\\*.o + $(MOVE) "$(BUILD_DIR)"\\x86\\*.* "$(RESOURCE_DIR)"\\x86 + $(DELETE) ".."\\*.h + $(RMDIR) "$(BUILD_DIR)/.." + +# Builds 64-bit Windows libraries +win64 : checkdirs $(BUILD_DIR)/x86_64/$(LIBRARY_NAME) + $(DELETE) "$(BUILD_DIR)"\\x86_64\\*.o + $(MOVE) "$(BUILD_DIR)"\\x86_64\\*.* "$(RESOURCE_DIR)"\\x86_64 + $(DELETE) ".."\\*.h + $(RMDIR) "$(BUILD_DIR)/.." + +# Rule to create build directories +checkdirs : $(BUILD_DIR)/x86 $(BUILD_DIR)/x86_64 +$(BUILD_DIR)/x86 : + $(MKDIR) "$@" +$(BUILD_DIR)/x86_64 : + $(MKDIR) "$@" + +# Rule to build 32-bit library +$(BUILD_DIR)/x86/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86) + $(LINK) $(LDFLAGS) /MACHINE:X86 /OUT:$@ $(OBJECTSx86) $(LIBRARIES) + +# Rule to build 64-bit library +$(BUILD_DIR)/x86_64/$(LIBRARY_NAME) : $(JNI_HEADER) $(OBJECTSx86_64) + $(LINK) $(LDFLAGS) /MACHINE:X64 /OUT:$@ $(OBJECTSx86_64) $(LIBRARIES) + +# Suffix rules to get from *.cpp -> *.o +$(BUILD_DIR)/x86/%.o : %.cpp + $(COMPILE) $(CFLAGS) $(INCLUDES) $< -Fo$@ +$(BUILD_DIR)/x86_64/%.o : %.cpp + $(COMPILE) $(CFLAGS) $(INCLUDES) $< -Fo$@ + +# Rule to build JNI header file +$(JNI_HEADER) : $(JAVA_CLASS) + $(JAVAH) -d .. -classpath $(JAVA_CLASS_DIR)/../../.. $(FULL_CLASS) + +# Suffix rule to get from *.java -> *.class +$(JAVA_CLASS) : + $(JAVAC) $(JFLAGS) -d $(JAVA_CLASS_DIR)/../../.. $(JAVA_SOURCE_DIR)/$(basename $(notdir $@)).java diff --git a/src/main/c/Windows/SerialPort_Windows.cpp b/src/main/c/Windows/SerialPort_Windows.cpp new file mode 100644 index 0000000..900ec21 --- /dev/null +++ b/src/main/c/Windows/SerialPort_Windows.cpp @@ -0,0 +1,492 @@ +/* + * SerialPort_Windows.cpp + * + * Created on: Feb 25, 2012 + * Last Updated on: Feb 27, 2015 + * Author: Will Hedgecock + * + * Copyright (C) 2012-2015 Fazecast, Inc. + * + * This file is part of jSerialComm. + * + * jSerialComm is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * jSerialComm is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with jSerialComm. If not, see . + */ + +#ifdef _WIN32 +#define WINVER _WIN32_WINNT_WINXP +#define _WIN32_WINNT _WIN32_WINNT_WINXP +#define NTDDI_VERSION NTDDI_WINXP +#define WIN32_LEAN_AND_MEAN +#include +#include +#include +#include +#include "../com_fazecast_jSerialComm_SerialPort.h" + +JNIEXPORT jobjectArray JNICALL Java_com_fazecast_jSerialComm_SerialPort_getCommPorts(JNIEnv *env, jclass serialCommClass) +{ + HKEY keyHandle1, keyHandle2, keyHandle3, keyHandle4, keyHandle5; + DWORD numSubKeys1, numSubKeys2, numSubKeys3, numValues; + DWORD maxSubKeyLength1, maxSubKeyLength2, maxSubKeyLength3; + DWORD maxValueLength, maxComPortLength, valueLength, comPortLength, keyType; + DWORD subKeyLength1, subKeyLength2, subKeyLength3, friendlyNameLength; + + // Enumerate serial ports on machine + std::map serialCommPorts; + if ((RegOpenKeyEx(HKEY_LOCAL_MACHINE, "HARDWARE\\DEVICEMAP\\SERIALCOMM", 0, KEY_QUERY_VALUE, &keyHandle1) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle1, NULL, NULL, NULL, NULL, NULL, NULL, &numValues, &maxValueLength, &maxComPortLength, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + ++maxValueLength; + ++maxComPortLength; + CHAR *valueName = (CHAR*)malloc(maxValueLength); + CHAR *comPort = (CHAR*)malloc(maxComPortLength); + + // Iterate through all COM ports + for (DWORD i = 0; i < numValues; ++i) + { + // Get serial port name and COM value + valueLength = maxValueLength; + comPortLength = maxComPortLength; + memset(valueName, 0, valueLength); + memset(comPort, 0, comPortLength); + if ((RegEnumValue(keyHandle1, i, valueName, &valueLength, NULL, &keyType, (BYTE*)comPort, &comPortLength) == ERROR_SUCCESS) && (keyType == REG_SZ)) + { + // Set port name and description + std::string comPortString = (comPort[0] == '\\') ? std::string(strrchr(comPort, '\\') + 1) : std::string(comPort); + std::string descriptionString = strrchr(valueName, '\\') ? std::string(strrchr(valueName, '\\') + 1) : std::string(valueName); + + // Add new SerialComm object to vector + serialCommPorts[comPortString] = descriptionString; + } + } + + // Clean up memory + free(valueName); + free(comPort); + } + RegCloseKey(keyHandle1); + + // Enumerate all devices on machine + if ((RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Enum", 0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &keyHandle1) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle1, NULL, NULL, NULL, &numSubKeys1, &maxSubKeyLength1, NULL, NULL, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + ++maxSubKeyLength1; + CHAR *subKeyName1 = (CHAR*)malloc(maxSubKeyLength1); + + // Enumerate sub-keys + for (DWORD i1 = 0; i1 < numSubKeys1; ++i1) + { + subKeyLength1 = maxSubKeyLength1; + if ((RegEnumKeyEx(keyHandle1, i1, subKeyName1, &subKeyLength1, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) && + (RegOpenKeyEx(keyHandle1, subKeyName1, 0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &keyHandle2) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle2, NULL, NULL, NULL, &numSubKeys2, &maxSubKeyLength2, NULL, NULL, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + ++maxSubKeyLength2; + CHAR *subKeyName2 = (CHAR*)malloc(maxSubKeyLength2); + + // Enumerate sub-keys + for (DWORD i2 = 0; i2 < numSubKeys2; ++i2) + { + subKeyLength2 = maxSubKeyLength2; + if ((RegEnumKeyEx(keyHandle2, i2, subKeyName2, &subKeyLength2, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) && + (RegOpenKeyEx(keyHandle2, subKeyName2, 0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &keyHandle3) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle3, NULL, NULL, NULL, &numSubKeys3, &maxSubKeyLength3, NULL, NULL, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + ++maxSubKeyLength3; + CHAR *subKeyName3 = (CHAR*)malloc(maxSubKeyLength3); + + // Enumerate sub-keys + for (DWORD i3 = 0; i3 < numSubKeys3; ++i3) + { + subKeyLength3 = maxSubKeyLength3; + if ((RegEnumKeyEx(keyHandle3, i3, subKeyName3, &subKeyLength3, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) && + (RegOpenKeyEx(keyHandle3, subKeyName3, 0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, &keyHandle4) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle4, NULL, NULL, NULL, NULL, NULL, NULL, &numValues, NULL, &valueLength, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + friendlyNameLength = valueLength + 1; + CHAR *friendlyName = (CHAR*)malloc(friendlyNameLength); + + if ((RegOpenKeyEx(keyHandle4, "Device Parameters", 0, KEY_QUERY_VALUE, &keyHandle5) == ERROR_SUCCESS) && + (RegQueryInfoKey(keyHandle5, NULL, NULL, NULL, NULL, NULL, NULL, &numValues, NULL, &valueLength, NULL, NULL) == ERROR_SUCCESS)) + { + // Allocate memory + comPortLength = valueLength + 1; + CHAR *comPort = (CHAR*)malloc(comPortLength); + + // Attempt to get COM value and friendly port name + if ((RegQueryValueEx(keyHandle5, "PortName", NULL, &keyType, (BYTE*)comPort, &comPortLength) == ERROR_SUCCESS) && (keyType == REG_SZ) && + (RegQueryValueEx(keyHandle4, "FriendlyName", NULL, &keyType, (BYTE*)friendlyName, &friendlyNameLength) == ERROR_SUCCESS) && (keyType == REG_SZ)) + { + // Set port name and description + std::string comPortString = (comPort[0] == '\\') ? std::string(strrchr(comPort, '\\') + 1) : std::string(comPort); + std::string descriptionString = std::string(friendlyName); + + // Update friendly name if COM port is actually connected and present in the port list + std::map::iterator it = serialCommPorts.find(comPortString); + if (it != serialCommPorts.end()) + it->second = descriptionString; + } + + // Clean up memory + free(comPort); + } + + // Clean up memory and close registry key + RegCloseKey(keyHandle5); + free(friendlyName); + } + + // Close registry key + RegCloseKey(keyHandle4); + } + + // Clean up memory and close registry key + RegCloseKey(keyHandle3); + free(subKeyName3); + } + } + + // Clean up memory and close registry key + RegCloseKey(keyHandle2); + free(subKeyName2); + } + } + + // Clean up memory and close registry key + RegCloseKey(keyHandle1); + free(subKeyName1); + } + + // Get relevant SerialComm methods and fill in com port array + jmethodID serialCommConstructor = env->GetMethodID(serialCommClass, "", "()V"); + jobjectArray arrayObject = env->NewObjectArray(serialCommPorts.size(), serialCommClass, 0); + int i = 0; + for (std::map::iterator it = serialCommPorts.begin(); it != serialCommPorts.end(); ++it, ++i) + { + jobject serialCommObject = env->NewObject(serialCommClass, serialCommConstructor); + env->SetObjectField(serialCommObject, env->GetFieldID(serialCommClass, "comPort", "Ljava/lang/String;"), env->NewStringUTF((std::string("\\\\.\\") + it->first).c_str())); + env->SetObjectField(serialCommObject, env->GetFieldID(serialCommClass, "portString", "Ljava/lang/String;"), env->NewStringUTF(it->second.c_str())); + env->SetObjectArrayElement(arrayObject, i, serialCommObject); + } + return arrayObject; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_openPort(JNIEnv *env, jobject obj) +{ + jclass serialCommClass = env->GetObjectClass(obj); + jstring portNameJString = (jstring)env->GetObjectField(obj, env->GetFieldID(serialCommClass, "comPort", "Ljava/lang/String;")); + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + const char *portName = env->GetStringUTFChars(portNameJString, NULL); + + // Try to open existing serial port with read/write access + if ((serialPortHandle = CreateFile(portName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL)) != INVALID_HANDLE_VALUE) + { + // Set port handle in Java structure + env->SetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J"), (jlong)serialPortHandle); + + // Configure the port parameters and timeouts + if (Java_com_fazecast_jSerialComm_SerialPort_configPort(env, obj) && Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(env, obj) && + Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(env, obj)) + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_TRUE); + else + { + // Close the port if there was a problem setting the parameters + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + } + + env->ReleaseStringUTFChars(portNameJString, portName); + return (serialPortHandle == INVALID_HANDLE_VALUE) ? JNI_FALSE : JNI_TRUE; +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configPort(JNIEnv *env, jobject obj) +{ + DCB dcbSerialParams = {0}; + dcbSerialParams.DCBlength = sizeof(DCB); + jclass serialCommClass = env->GetObjectClass(obj); + + // Get port parameters from Java class + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + DWORD baudRate = (DWORD)env->GetIntField(obj, env->GetFieldID(serialCommClass, "baudRate", "I")); + BYTE byteSize = (BYTE)env->GetIntField(obj, env->GetFieldID(serialCommClass, "dataBits", "I")); + int stopBitsInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "stopBits", "I")); + int parityInt = env->GetIntField(obj, env->GetFieldID(serialCommClass, "parity", "I")); + BYTE stopBits = (stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_STOP_BIT) ? ONESTOPBIT : (stopBitsInt == com_fazecast_jSerialComm_SerialPort_ONE_POINT_FIVE_STOP_BITS) ? ONE5STOPBITS : TWOSTOPBITS; + BYTE parity = (parityInt == com_fazecast_jSerialComm_SerialPort_NO_PARITY) ? NOPARITY : (parityInt == com_fazecast_jSerialComm_SerialPort_ODD_PARITY) ? ODDPARITY : (parityInt == com_fazecast_jSerialComm_SerialPort_EVEN_PARITY) ? EVENPARITY : (parityInt == com_fazecast_jSerialComm_SerialPort_MARK_PARITY) ? MARKPARITY : SPACEPARITY; + BOOL isParity = (parityInt == com_fazecast_jSerialComm_SerialPort_NO_PARITY) ? FALSE : TRUE; + + // Retrieve existing port configuration + if (!GetCommState(serialPortHandle, &dcbSerialParams)) + return JNI_FALSE; + + // Set updated port parameters + dcbSerialParams.BaudRate = baudRate; + dcbSerialParams.ByteSize = byteSize; + dcbSerialParams.StopBits = stopBits; + dcbSerialParams.Parity = parity; + dcbSerialParams.fParity = isParity; + dcbSerialParams.fBinary = TRUE; + dcbSerialParams.fAbortOnError = FALSE; + + // Apply changes + return SetCommState(serialPortHandle, &dcbSerialParams); +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configFlowControl(JNIEnv *env, jobject obj) +{ + DCB dcbSerialParams = {0}; + dcbSerialParams.DCBlength = sizeof(DCB); + jclass serialCommClass = env->GetObjectClass(obj); + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + + // Get flow control parameters from Java class + int flowControl = env->GetIntField(obj, env->GetFieldID(serialCommClass, "flowControl", "I")); + BOOL CTSEnabled = (((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_CTS_ENABLED) > 0) || + ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_RTS_ENABLED) > 0)); + BOOL DSREnabled = (((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_DSR_ENABLED) > 0) || + ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_DTR_ENABLED) > 0)); + BYTE DTRValue = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_DTR_ENABLED) > 0) ? DTR_CONTROL_HANDSHAKE : DTR_CONTROL_ENABLE; + BYTE RTSValue = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_RTS_ENABLED) > 0) ? RTS_CONTROL_HANDSHAKE : RTS_CONTROL_ENABLE; + BOOL XonXoffInEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_IN_ENABLED) > 0); + BOOL XonXoffOutEnabled = ((flowControl & com_fazecast_jSerialComm_SerialPort_FLOW_CONTROL_XONXOFF_OUT_ENABLED) > 0); + + // Retrieve existing port configuration + if (!GetCommState(serialPortHandle, &dcbSerialParams)) + return JNI_FALSE; + + // Set updated port parameters + dcbSerialParams.fRtsControl = RTSValue; + dcbSerialParams.fOutxCtsFlow = CTSEnabled; + dcbSerialParams.fOutxDsrFlow = DSREnabled; + dcbSerialParams.fDtrControl = DTRValue; + dcbSerialParams.fDsrSensitivity = DSREnabled; + dcbSerialParams.fOutX = XonXoffOutEnabled; + dcbSerialParams.fInX = XonXoffInEnabled; + dcbSerialParams.fTXContinueOnXoff = TRUE; + dcbSerialParams.fErrorChar = FALSE; + dcbSerialParams.fNull = FALSE; + dcbSerialParams.fAbortOnError = FALSE; + dcbSerialParams.XonLim = 2048; + dcbSerialParams.XoffLim = 512; + dcbSerialParams.XonChar = (char)17; + dcbSerialParams.XoffChar = (char)19; + + // Apply changes + return SetCommState(serialPortHandle, &dcbSerialParams); +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_configTimeouts(JNIEnv *env, jobject obj) +{ + // Get port timeouts from Java class + COMMTIMEOUTS timeouts = {0}; + jclass serialCommClass = env->GetObjectClass(obj); + HANDLE serialHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(serialCommClass, "portHandle", "J")); + int timeoutMode = env->GetIntField(obj, env->GetFieldID(serialCommClass, "timeoutMode", "I")); + DWORD readTimeout = (DWORD)env->GetIntField(obj, env->GetFieldID(serialCommClass, "readTimeout", "I")); + DWORD writeTimeout = (DWORD)env->GetIntField(obj, env->GetFieldID(serialCommClass, "writeTimeout", "I")); + + // Set updated port timeouts + timeouts.WriteTotalTimeoutMultiplier = 0; + switch (timeoutMode) + { + case com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING: // Read Semi-blocking + timeouts.ReadIntervalTimeout = MAXDWORD; + timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = 10; + break; + case (com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING | com_fazecast_jSerialComm_SerialPort_TIMEOUT_WRITE_SEMI_BLOCKING): // Read/Write Semi-blocking + timeouts.ReadIntervalTimeout = MAXDWORD; + timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = writeTimeout; + break; + case (com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_SEMI_BLOCKING | com_fazecast_jSerialComm_SerialPort_TIMEOUT_WRITE_BLOCKING): // Read Semi-blocking/Write Blocking + timeouts.ReadIntervalTimeout = MAXDWORD; + timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = writeTimeout; + break; + case com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING: // Read Blocking + timeouts.ReadIntervalTimeout = 0; + timeouts.ReadTotalTimeoutMultiplier = 0; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = 10; + break; + case (com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING | com_fazecast_jSerialComm_SerialPort_TIMEOUT_WRITE_SEMI_BLOCKING): // Read Blocking/Write Semi-blocking + timeouts.ReadIntervalTimeout = 0; + timeouts.ReadTotalTimeoutMultiplier = 0; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = writeTimeout; + break; + case (com_fazecast_jSerialComm_SerialPort_TIMEOUT_READ_BLOCKING | com_fazecast_jSerialComm_SerialPort_TIMEOUT_WRITE_BLOCKING): // Read/Write Blocking + timeouts.ReadIntervalTimeout = 0; + timeouts.ReadTotalTimeoutMultiplier = 0; + timeouts.ReadTotalTimeoutConstant = readTimeout; + timeouts.WriteTotalTimeoutConstant = writeTimeout; + break; + case com_fazecast_jSerialComm_SerialPort_TIMEOUT_NONBLOCKING: // Non-blocking + default: + timeouts.ReadIntervalTimeout = MAXDWORD; + timeouts.ReadTotalTimeoutMultiplier = 0; + timeouts.ReadTotalTimeoutConstant = 0; + timeouts.WriteTotalTimeoutConstant = 10; + break; + } + + // Apply changes + return SetCommTimeouts(serialHandle, &timeouts); +} + +JNIEXPORT jboolean JNICALL Java_com_fazecast_jSerialComm_SerialPort_closePort(JNIEnv *env, jobject obj) +{ + // Purge any outstanding port operations + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + PurgeComm(serialPortHandle, PURGE_RXABORT | PURGE_RXCLEAR | PURGE_TXABORT | PURGE_TXCLEAR); + + // Close port + BOOL retVal = CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + + return (retVal == 0) ? JNI_FALSE : JNI_TRUE; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_bytesAvailable(JNIEnv *env, jobject obj) +{ + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + COMSTAT commInfo; + DWORD numBytesAvailable; + + if (!ClearCommError(serialPortHandle, NULL, &commInfo)) + return -1; + numBytesAvailable = commInfo.cbInQue; + + return (jint)numBytesAvailable; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_readBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToRead) +{ + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + OVERLAPPED overlappedStruct = {0}; + overlappedStruct.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL); + char *readBuffer = (char*)malloc(bytesToRead); + DWORD numBytesRead = 0; + BOOL result; + + // Read from serial port + if ((result = ReadFile(serialPortHandle, readBuffer, bytesToRead, NULL, &overlappedStruct)) != FALSE) // Immediately successful + GetOverlappedResult(serialPortHandle, &overlappedStruct, &numBytesRead, TRUE); + else if (GetLastError() != ERROR_IO_PENDING) // Problem occurred + { + // Problem reading, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + else // Pending read operation + { + switch (WaitForSingleObject(overlappedStruct.hEvent, INFINITE)) + { + case WAIT_OBJECT_0: + if ((result = GetOverlappedResult(serialPortHandle, &overlappedStruct, &numBytesRead, TRUE)) == FALSE) + { + // Problem reading, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + break; + default: + // Problem reading, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + } + + // Return number of bytes read if successful + CloseHandle(overlappedStruct.hEvent); + env->SetByteArrayRegion(buffer, 0, numBytesRead, (jbyte*)readBuffer); + free(readBuffer); + return (result == TRUE) ? numBytesRead : -1; +} + +JNIEXPORT jint JNICALL Java_com_fazecast_jSerialComm_SerialPort_writeBytes(JNIEnv *env, jobject obj, jbyteArray buffer, jlong bytesToWrite) +{ + HANDLE serialPortHandle = (HANDLE)env->GetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J")); + OVERLAPPED overlappedStruct = {0}; + overlappedStruct.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL); + jbyte *writeBuffer = env->GetByteArrayElements(buffer, 0); + DWORD numBytesWritten = 0; + BOOL result; + + // Write to port + if ((result = WriteFile(serialPortHandle, writeBuffer, bytesToWrite, NULL, &overlappedStruct)) == FALSE) + { + if (GetLastError() != ERROR_IO_PENDING) + { + // Problem writing, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + else + { + switch (WaitForSingleObject(overlappedStruct.hEvent, INFINITE)) + { + case WAIT_OBJECT_0: + if ((result = GetOverlappedResult(serialPortHandle, &overlappedStruct, &numBytesWritten, TRUE)) == FALSE) + { + // Problem reading, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + } + break; + default: + // Problem reading, close port + CloseHandle(serialPortHandle); + serialPortHandle = INVALID_HANDLE_VALUE; + env->SetLongField(obj, env->GetFieldID(env->GetObjectClass(obj), "portHandle", "J"), (jlong)INVALID_HANDLE_VALUE); + env->SetBooleanField(obj, env->GetFieldID(env->GetObjectClass(obj), "isOpened", "Z"), JNI_FALSE); + break; + } + } + } + else + GetOverlappedResult(serialPortHandle, &overlappedStruct, &numBytesWritten, TRUE); + + // Return number of bytes written if successful + CloseHandle(overlappedStruct.hEvent); + env->ReleaseByteArrayElements(buffer, writeBuffer, JNI_ABORT); + return (result == TRUE) ? numBytesWritten : -1; +} + +#endif diff --git a/src/main/java/com/fazecast/jSerialComm/SerialPort.java b/src/main/java/com/fazecast/jSerialComm/SerialPort.java new file mode 100644 index 0000000..b41b857 --- /dev/null +++ b/src/main/java/com/fazecast/jSerialComm/SerialPort.java @@ -0,0 +1,717 @@ +/* + * SerialPort.java + * + * Created on: Feb 25, 2012 + * Last Updated on: Feb 27, 2015 + * Author: Will Hedgecock + * + * Copyright (C) 2012-2015 Fazecast, Inc. + * + * This file is part of jSerialComm. + * + * jSerialComm is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * jSerialComm is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with jSerialComm. If not, see . + */ + +package com.fazecast.jSerialComm; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; + +/** + * This class provides native access to serial ports and devices without requiring external libraries or tools. + * + * @author Will Hedgecock <will.hedgecock@gmail.com> + * @version 1.0 + * @see java.io.InputStream + * @see java.io.OutputStream + */ +public class SerialPort +{ + // Static initializer loads correct native library for this machine + static + { + String OS = System.getProperty("os.name").toLowerCase(); + String libraryPath = "", fileName = ""; + String tempFileDirectory = System.getProperty("java.io.tmpdir"); + if ((tempFileDirectory.charAt(tempFileDirectory.length()-1) != '\\') && + (tempFileDirectory.charAt(tempFileDirectory.length()-1) != '/')) + tempFileDirectory += "/"; + + // Determine Operating System and architecture + if (OS.indexOf("win") >= 0) + { + if (System.getProperty("os.arch").indexOf("64") >= 0) + libraryPath = "Windows/x86_64"; + else + libraryPath = "Windows/x86"; + fileName = "jSerialComm.dll"; + } + else if (OS.indexOf("mac") >= 0) + { + if (System.getProperty("os.arch").indexOf("64") >= 0) + libraryPath = "OSX/x86_64"; + else + libraryPath = "OSX/x86"; + fileName = "libjSerialComm.jnilib"; + } + else if ((OS.indexOf("nix") >= 0) || (OS.indexOf("nux") >= 0)) + { + if (System.getProperty("os.arch").indexOf("64") >= 0) + libraryPath = "Linux/x86_64"; + else + libraryPath = "Linux/x86"; + fileName = "libjSerialComm.so"; + } + else + { + System.err.println("This operating system is not supported by the jSerialComm library."); + System.exit(-1); + } + + // Get path of native library and copy file to working directory + File tempNativeLibrary = new File(tempFileDirectory + fileName); + tempNativeLibrary.deleteOnExit(); + try + { + InputStream fileContents = SerialPort.class.getResourceAsStream("/" + libraryPath + "/" + fileName); + FileOutputStream destinationFileContents = new FileOutputStream(tempNativeLibrary); + byte transferBuffer[] = new byte[4096]; + int numBytesRead; + + while ((numBytesRead = fileContents.read(transferBuffer)) > 0) + destinationFileContents.write(transferBuffer, 0, numBytesRead); + + fileContents.close(); + destinationFileContents.close(); + } + catch (Exception e) { e.printStackTrace(); } + + // Load native library + System.load(tempFileDirectory + fileName); + } + + /** + * Returns a list of all available serial ports on this machine. + *

+ * The serial ports can be accessed by iterating through each of the SerialPort objects in this array. + *

+ * Note that the {@link #openPort()} method must be called before any attempts to read from or write to the port. Likewise, {@link #closePort()} should be called when you are finished accessing the port. + *

+ * All serial port parameters or timeouts can be changed at any time after the port has been opened. + * + * @return An array of SerialPort objects. + */ + static public native SerialPort[] getCommPorts(); + + // Parity Values + static final public int NO_PARITY = 0; + static final public int ODD_PARITY = 1; + static final public int EVEN_PARITY = 2; + static final public int MARK_PARITY = 3; + static final public int SPACE_PARITY = 4; + + // Number of Stop Bits + static final public int ONE_STOP_BIT = 1; + static final public int ONE_POINT_FIVE_STOP_BITS = 2; + static final public int TWO_STOP_BITS = 3; + + // Flow Control constants + static final public int FLOW_CONTROL_DISABLED = 0x00000000; + static final public int FLOW_CONTROL_RTS_ENABLED = 0x00000001; + static final public int FLOW_CONTROL_CTS_ENABLED = 0x00000010; + static final public int FLOW_CONTROL_DSR_ENABLED = 0x00000100; + static final public int FLOW_CONTROL_DTR_ENABLED = 0x00001000; + static final public int FLOW_CONTROL_XONXOFF_IN_ENABLED = 0x00010000; + static final public int FLOW_CONTROL_XONXOFF_OUT_ENABLED = 0x00100000; + + // Timeout Modes + static final public int TIMEOUT_NONBLOCKING = 0x00000000; + static final public int TIMEOUT_READ_SEMI_BLOCKING = 0x00000001; + static final public int TIMEOUT_WRITE_SEMI_BLOCKING = 0x00000010; + static final public int TIMEOUT_READ_BLOCKING = 0x00000100; + static final public int TIMEOUT_WRITE_BLOCKING = 0x00001000; + + // Serial Port Parameters + private volatile int baudRate = 9600, dataBits = 8, stopBits = ONE_STOP_BIT, parity = NO_PARITY; + private volatile int timeoutMode = TIMEOUT_NONBLOCKING, readTimeout = 0, writeTimeout = 0, flowControl = 0; + private volatile SerialPortInputStream inputStream = null; + private volatile SerialPortOutputStream outputStream = null; + private volatile String portString, comPort; + private volatile long portHandle = -1l; + private volatile boolean isOpened = false; + + /** + * Opens this serial port for reading and writing. + *

+ * All serial port parameters or timeouts can be changed at any time after the port has been opened. + * + * @return Whether the port was successfully opened. + */ + public final native boolean openPort(); + + /** + * Closes this serial port. + * + * @return Whether the port was successfully closed. + */ + public final native boolean closePort(); + + // Serial Port Setup Methods + private final native boolean configPort(); // Changes/sets serial port parameters as defined by this class + private final native boolean configFlowControl(); // Changes/sets flow control parameters as defined by this class + private final native boolean configTimeouts(); // Changes/sets serial port timeouts as defined by this class + + /** + * Returns the number of bytes available without blocking if {@link #readBytes} were to be called immediately + * after this method returns. + * + * @return The number of bytes currently available to be read. + */ + public final native int bytesAvailable(); + + /** + * Reads up to bytesToRead raw data bytes from the serial port and stores them in the buffer. + *

+ * The length of the byte buffer must be greater than or equal to the value passed in for bytesToRead + *

+ * If no timeouts were specified or the read timeout was set to 0, this call will block until bytesToRead bytes of data have been successfully read from the serial port. + * Otherwise, this method will return after bytesToRead bytes of data have been read or the number of milliseconds specified by the read timeout have elapsed, + * whichever comes first, regardless of the availability of more data. + * + * @param buffer The buffer into which the raw data is read. + * @param bytesToRead The number of bytes to read from the serial port. + * @return The number of bytes successfully read, or -1 if there was an error reading from the port. + */ + public final native int readBytes(byte[] buffer, long bytesToRead); + + /** + * Writes up to bytesToWrite raw data bytes from the buffer parameter to the serial port. + *

+ * The length of the byte buffer must be greater than or equal to the value passed in for bytesToWrite + *

+ * If no timeouts were specified or the write timeout was set to 0, this call will block until bytesToWrite bytes of data have been successfully written the serial port. + * Otherwise, this method will return after bytesToWrite bytes of data have been written or the number of milliseconds specified by the write timeout have elapsed, + * whichever comes first, regardless of the availability of more data. + * + * @param buffer The buffer containing the raw data to write to the serial port. + * @param bytesToWrite The number of bytes to write to the serial port. + * @return The number of bytes successfully written, or -1 if there was an error writing to the port. + */ + public final native int writeBytes(byte[] buffer, long bytesToWrite); + + // Default Constructor + public SerialPort() {} + + /** + * Returns an {@link java.io.InputStream} object associated with this serial port. + *

+ * Allows for easier read access of the underlying data stream and abstracts away many low-level read details. + *

+ * Make sure to call the {@link java.io.InputStream#close()} method when you are done using this stream. + * + * @return An {@link java.io.InputStream} object associated with this serial port. + * @see java.io.InputStream + */ + public final InputStream getInputStream() + { + if ((inputStream == null) && isOpened) + inputStream = new SerialPortInputStream(); + return inputStream; + } + + /** + * Returns an {@link java.io.OutputStream} object associated with this serial port. + *

+ * Allows for easier write access to the underlying data stream and abstracts away many low-level writing details. + *

+ * Make sure to call the {@link java.io.OutputStream#close()} method when you are done using this stream. + * + * @return An {@link java.io.OutputStream} object associated with this serial port. + * @see java.io.OutputStream + */ + public final OutputStream getOutputStream() + { + if ((outputStream == null) && isOpened) + outputStream = new SerialPortOutputStream(); + return outputStream; + } + + /** + * Sets all serial port parameters at one time. + *

+ * Allows the user to set all port parameters with a single function call. + *

+ * The baud rate can be any arbitrary value specified by the user. The default value is 9600 baud. The data bits parameter + * specifies how many data bits to use per word. The default is 8, but any values from 5 to 8 are acceptable. + *

+ * The default number of stop bits is 1, but 2 bits can also be used or even 1.5 on Windows machines. Please use the built-in + * constants for this parameter ({@link #ONE_STOP_BIT}, {@link #ONE_POINT_FIVE_STOP_BITS}, {@link #TWO_STOP_BITS}). + *

+ * The parity parameter specifies how error detection is carried out. Again, the built-in constants should be used. + * Acceptable values are {@link #NO_PARITY}, {@link #EVEN_PARITY}, {@link #ODD_PARITY}, {@link #MARK_PARITY}, and {@link #SPACE_PARITY}. + * + * @param newBaudRate The desired baud rate for this serial port. + * @param newDataBits The number of data bits to use per word. + * @param newStopBits The number of stop bits to use. + * @param newParity The type of parity error-checking desired. + * @see #ONE_STOP_BIT + * @see #ONE_POINT_FIVE_STOP_BITS + * @see #TWO_STOP_BITS + * @see #NO_PARITY + * @see #EVEN_PARITY + * @see #ODD_PARITY + * @see #MARK_PARITY + * @see #SPACE_PARITY + */ + public final void setComPortParameters(int newBaudRate, int newDataBits, int newStopBits, int newParity) + { + baudRate = newBaudRate; + dataBits = newDataBits; + stopBits = newStopBits; + parity = newParity; + configPort(); + } + + /** + * Sets the serial port read and write timeout parameters. + *

+ * The built-in timeout mode constants should be used ({@link #TIMEOUT_NONBLOCKING}, {@link #TIMEOUT_READ_SEMI_BLOCKING}, + * {@link #TIMEOUT_WRITE_SEMI_BLOCKING}, {@link #TIMEOUT_READ_BLOCKING}, {@link #TIMEOUT_WRITE_BLOCKING}) to specify how + * timeouts are to be handled. + *

+ * Valid modes are: + *

+ *      Non-blocking: {@link #TIMEOUT_NONBLOCKING}
+ *      Read Semi-blocking: {@link #TIMEOUT_READ_SEMI_BLOCKING}
+ *      Read/Write Semi-blocking: {@link #TIMEOUT_READ_SEMI_BLOCKING} | {@link #TIMEOUT_WRITE_SEMI_BLOCKING}
+ *      Read Semi-Blocking/Write Full-blocking: {@link #TIMEOUT_READ_SEMI_BLOCKING} | {@link #TIMEOUT_WRITE_BLOCKING}
+ *      Read Full-blocking: {@link #TIMEOUT_READ_BLOCKING}
+ *      Read Full-blocking/Write Semi-blocking: {@link #TIMEOUT_READ_BLOCKING} | {@link #TIMEOUT_WRITE_SEMI_BLOCKING}
+ *      Read/Write Full-blocking: {@link #TIMEOUT_READ_BLOCKING} | {@link #TIMEOUT_WRITE_BLOCKING}
+ *

+ * The {@link #TIMEOUT_NONBLOCKING} mode specifies that the corresponding {@link #readBytes(byte[],long)} or {@link #writeBytes(byte[],long)} call + * will return immediately with any available data. + *

+ * The {@link #TIMEOUT_READ_SEMI_BLOCKING} or {@link #TIMEOUT_WRITE_SEMI_BLOCKING} modes specify that the corresponding calls will block until either + * newReadTimeout or newWriteTimeout milliseconds of inactivity have elapsed or at least 1 byte of data can be written or read. + *

+ * The {@link #TIMEOUT_READ_BLOCKING} or {@link #TIMEOUT_WRITE_BLOCKING} modes specify that the corresponding call will block until either + * newReadTimeout or newWriteTimeout milliseconds of inactivity have elapsed or the total number of requested bytes can be written or + * returned. + *

+ * A value of 0 for either newReadTimeout or newWriteTimeout indicates that a {@link #readBytes(byte[],long)} or + * {@link #writeBytes(byte[],long)} call should block forever until it can return successfully (based upon the current timeout mode specified). + * + * @param newTimeoutMode The new timeout mode as specified above. + * @param newReadTimeout The number of milliseconds of inactivity to tolerate before returning from a {@link #readBytes(byte[],long)} call. + * @param newWriteTimeout The number of milliseconds of inactivity to tolerate before returning from a {@link #writeBytes(byte[],long)} call. + */ + public final void setComPortTimeouts(int newTimeoutMode, int newReadTimeout, int newWriteTimeout) + { + timeoutMode = newTimeoutMode; + readTimeout = newReadTimeout; + writeTimeout = newWriteTimeout; + configTimeouts(); + } + + /** + * Sets the desired baud rate for this serial port. + *

+ * The default baud rate is 9600 baud. + * + * @param newBaudRate The desired baud rate for this serial port. + */ + public final void setBaudRate(int newBaudRate) { baudRate = newBaudRate; configPort(); } + + /** + * Sets the desired number of data bits per word. + *

+ * The default number of data bits per word is 8. + * + * @param newDataBits The desired number of data bits per word. + */ + public final void setNumDataBits(int newDataBits) { dataBits = newDataBits; configPort(); } + + /** + * Sets the desired number of stop bits per word. + *

+ * The default number of stop bits per word is 2. Built-in stop-bit constants should be used + * in this method ({@link #ONE_STOP_BIT}, {@link #ONE_POINT_FIVE_STOP_BITS}, {@link #TWO_STOP_BITS}). + *

+ * Note that {@link #ONE_POINT_FIVE_STOP_BITS} stop bits may not be available on non-Windows systems. + * + * @param newStopBits The desired number of stop bits per word. + * @see #ONE_STOP_BIT + * @see #ONE_POINT_FIVE_STOP_BITS + * @see #TWO_STOP_BITS + */ + public final void setNumStopBits(int newStopBits) { stopBits = newStopBits; configPort(); } + + /** + * Specifies what kind of flow control to enable for this serial port. + *

+ * By default, no flow control is enabled. Built-in flow control constants should be used + * in this method ({@link #FLOW_CONTROL_RTS_ENABLED}, {@link #FLOW_CONTROL_CTS_ENABLED}, {@link #FLOW_CONTROL_DTR_ENABLED}, + * {@link #FLOW_CONTROL_DSR_ENABLED}, {@link #FLOW_CONTROL_XONXOFF_IN_ENABLED}, {@link #FLOW_CONTROL_XONXOFF_OUT_ENABLED}), and can be OR'ed together. + *

+ * Valid flow control configurations are: + *

+ *      None: {@link #FLOW_CONTROL_DISABLED}
+ *      CTS: {@link #FLOW_CONTROL_CTS_ENABLED}
+ *      RTS/CTS: {@link #FLOW_CONTROL_RTS_ENABLED} | {@link #FLOW_CONTROL_CTS_ENABLED}
+ *      DSR: {@link #FLOW_CONTROL_DSR_ENABLED}
+ *      DTR/DSR: {@link #FLOW_CONTROL_DTR_ENABLED} | {@link #FLOW_CONTROL_DSR_ENABLED}
+ *      XOn/XOff: {@link #FLOW_CONTROL_XONXOFF_IN_ENABLED} | {@link #FLOW_CONTROL_XONXOFF_OUT_ENABLED} + *

+ * Note that only one valid flow control configuration can be used at any time. For example, attempting to use both XOn/XOff + * and RTS/CTS will most likely result in an unusable serial port. + * + * @param newFlowControlSettings The desired type of flow control to enable for this serial port. + * @see #FLOW_CONTROL_DISABLED + * @see #FLOW_CONTROL_RTS_ENABLED + * @see #FLOW_CONTROL_CTS_ENABLED + * @see #FLOW_CONTROL_DTR_ENABLED + * @see #FLOW_CONTROL_DSR_ENABLED + * @see #FLOW_CONTROL_XONXOFF_IN_ENABLED + * @see #FLOW_CONTROL_XONXOFF_OUT_ENABLED + */ + public final void setFlowControl(int newFlowControlSettings) { flowControl = newFlowControlSettings; configFlowControl(); } + + /** + * Sets the desired parity error-detection scheme to be used. + *

+ * The parity parameter specifies how error detection is carried out. The built-in parity constants should be used. + * Acceptable values are {@link #NO_PARITY}, {@link #EVEN_PARITY}, {@link #ODD_PARITY}, {@link #MARK_PARITY}, and {@link #SPACE_PARITY}. + * + * @param newParity The desired parity scheme to be used. + * @see #NO_PARITY + * @see #EVEN_PARITY + * @see #ODD_PARITY + * @see #MARK_PARITY + * @see #SPACE_PARITY + */ + public final void setParity(int newParity) { parity = newParity; configPort(); } + + /** + * Gets a descriptive string representing this serial port or the device connected to it. + *

+ * This description is generated by the operating system and may or may not be a good representation of the actual port or + * device it describes. + * + * @return A descriptive string representing this serial port. + */ + public final String getDescriptivePortName() { return portString.trim(); } + + /** + * Gets the operating system-defined device name corresponding to this serial port. + * + * @return The system-defined device name of this serial port. + */ + public final String getSystemPortName() { return comPort.substring(comPort.lastIndexOf('\\')+1); } + + /** + * Gets the current baud rate of the serial port. + * + * @return The current baud rate of the serial port. + */ + public final int getBaudRate() { return baudRate; } + + /** + * Gets the current number of data bits per word. + * + * @return The current number of data bits per word. + */ + public final int getNumDataBits() { return dataBits; } + + /** + * Gets the current number of stop bits per word. + *

+ * The return value should not be interpreted as an integer, but rather compared with the built-in stop bit constants + * ({@link #ONE_STOP_BIT}, {@link #ONE_POINT_FIVE_STOP_BITS}, {@link #TWO_STOP_BITS}). + * + * @return The current number of stop bits per word. + * @see #ONE_STOP_BIT + * @see #ONE_POINT_FIVE_STOP_BITS + * @see #TWO_STOP_BITS + */ + public final int getNumStopBits() { return stopBits; } + + /** + * Gets the current parity error-checking scheme. + *

+ * The return value should not be interpreted as an integer, but rather compared with the built-in parity constants + * ({@link #NO_PARITY}, {@link #EVEN_PARITY}, {@link #ODD_PARITY}, {@link #MARK_PARITY}, and {@link #SPACE_PARITY}). + * + * @return The current parity scheme. + * @see #NO_PARITY + * @see #EVEN_PARITY + * @see #ODD_PARITY + * @see #MARK_PARITY + * @see #SPACE_PARITY + */ + public final int getParity() { return parity; } + + /** + * Gets the number of milliseconds of inactivity to tolerate before returning from a {@link #readBytes(byte[],long)} call. + *

+ * A value of 0 indicates that a {@link #readBytes(byte[],long)} call will block forever until it has successfully read + * the indicated number of bytes from the serial port. + *

+ * Any value other than 0 indicates the number of milliseconds of inactivity that will be tolerated before the {@link #readBytes(byte[],long)} + * call will return. + * + * @return The number of milliseconds of inactivity to tolerate before returning from a {@link #readBytes(byte[],long)} call. + */ + public final int getReadTimeout() { return readTimeout; } + + /** + * Gets the number of milliseconds of inactivity to tolerate before returning from a {@link #writeBytes(byte[],long)} call. + *

+ * A value of 0 indicates that a {@link #writeBytes(byte[],long)} call will block forever until it has successfully written + * the indicated number of bytes to the serial port. + *

+ * Any value other than 0 indicates the number of milliseconds of inactivity that will be tolerated before the {@link #writeBytes(byte[],long)} + * call will return. + * + * @return The number of milliseconds of inactivity to tolerate before returning from a {@link #writeBytes(byte[],long)} call. + */ + public final int getWriteTimeout() { return writeTimeout; } + + /** + * Returns the flow control settings enabled on this serial port. + *

+ * The integer result should be masked with the built-in flow control constants to test if the desired setting is enabled. + * Valid flow control configurations are: + *

+ *      None: {@link #FLOW_CONTROL_DISABLED}
+ *      CTS: {@link #FLOW_CONTROL_CTS_ENABLED}
+ *      RTS/CTS: {@link #FLOW_CONTROL_RTS_ENABLED} | {@link #FLOW_CONTROL_CTS_ENABLED}
+ *      DSR: {@link #FLOW_CONTROL_DSR_ENABLED}
+ *      DTR/DSR: {@link #FLOW_CONTROL_DTR_ENABLED} | {@link #FLOW_CONTROL_DSR_ENABLED}
+ *      XOn/XOff: {@link #FLOW_CONTROL_XONXOFF_IN_ENABLED} | {@link #FLOW_CONTROL_XONXOFF_OUT_ENABLED} + * + * @return The flow control settings enabled on this serial port. + * @see #FLOW_CONTROL_DISABLED + * @see #FLOW_CONTROL_RTS_ENABLED + * @see #FLOW_CONTROL_CTS_ENABLED + * @see #FLOW_CONTROL_DTR_ENABLED + * @see #FLOW_CONTROL_DSR_ENABLED + * @see #FLOW_CONTROL_XONXOFF_IN_ENABLED + * @see #FLOW_CONTROL_XONXOFF_OUT_ENABLED + */ + public final int getFlowControlSettings() { return flowControl; } + + // InputStream interface class + private final class SerialPortInputStream extends InputStream + { + public SerialPortInputStream() {} + + @Override + public final int available() throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + return bytesAvailable(); + } + + @Override + public final int read() throws IOException + { + byte[] buffer = new byte[1]; + int bytesRead; + + while (isOpened) + { + bytesRead = readBytes(buffer, 1l); + if (bytesRead > 0) + return ((int)buffer[0] & 0x000000FF); + } + throw new IOException("This port appears to have been shutdown or disconnected."); + } + + @Override + public final int read(byte[] b) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + return read(b, 0, b.length); + + } + + @Override + public final int read(byte[] b, int off, int len) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + if (len == 0) + return 0; + + byte[] buffer = new byte[len]; + int numRead = readBytes(buffer, len); + if (numRead > 0) + System.arraycopy(buffer, 0, b, off, numRead); + + return numRead; + } + + @Override + public final long skip(long n) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + byte[] buffer = new byte[(int)n]; + return readBytes(buffer, n); + } + } + + // OutputStream interface class + private final class SerialPortOutputStream extends OutputStream + { + public SerialPortOutputStream() {} + + @Override + public final void write(int b) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + byte[] buffer = new byte[1]; + buffer[0] = (byte)(b & 0x000000FF); + if (writeBytes(buffer, 1l) < 0) + throw new IOException("This port appears to have been shutdown or disconnected."); + } + + @Override + public final void write(byte[] b) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + write(b, 0, b.length); + } + + @Override + public final void write(byte[] b, int off, int len) throws IOException + { + if (!isOpened) + throw new IOException("This port appears to have been shutdown or disconnected."); + + byte[] buffer = new byte[len]; + System.arraycopy(b, off, buffer, 0, len); + if (writeBytes(buffer, len) < 0) + throw new IOException("This port appears to have been shutdown or disconnected."); + } + } + + static public void main(String[] args) + { + SerialPort[] ports = SerialPort.getCommPorts(); + System.out.println("\nPorts:\n"); + for (int i = 0; i < ports.length; ++i) + System.out.println(" " + ports[i].getSystemPortName() + ": " + ports[i].getDescriptivePortName()); + SerialPort ubxPort = ports[1]; + + byte[] readBuffer = new byte[2048]; + System.out.println("\nOpening " + ubxPort.getDescriptivePortName() + ": " + ubxPort.openPort()); + System.out.println("Setting read timeout mode to non-blocking"); + ubxPort.setComPortTimeouts(TIMEOUT_NONBLOCKING, 1000, 0); + InputStream in = ubxPort.getInputStream(); + try + { + for (int i = 0; i < 3; ++i) + { + System.out.println("\nReading #" + i); + System.out.println("Available: " + ubxPort.bytesAvailable()); + int numRead = ubxPort.readBytes(readBuffer, readBuffer.length); + System.out.println("Read " + numRead + " bytes."); + } + in.close(); + } catch (Exception e) { e.printStackTrace(); } + System.out.println("\nSetting read timeout mode to semi-blocking with a timeout of 200ms"); + ubxPort.setComPortTimeouts(TIMEOUT_READ_SEMI_BLOCKING, 200, 0); + in = ubxPort.getInputStream(); + try + { + for (int i = 0; i < 3; ++i) + { + System.out.println("\nReading #" + i); + System.out.println("Available: " + ubxPort.bytesAvailable()); + int numRead = ubxPort.readBytes(readBuffer, readBuffer.length); + System.out.println("Read " + numRead + " bytes."); + } + in.close(); + } catch (Exception e) { e.printStackTrace(); } + System.out.println("\nSetting read timeout mode to semi-blocking with no timeout"); + ubxPort.setComPortTimeouts(TIMEOUT_READ_SEMI_BLOCKING, 0, 0); + in = ubxPort.getInputStream(); + try + { + for (int i = 0; i < 3; ++i) + { + System.out.println("\nReading #" + i); + System.out.println("Available: " + ubxPort.bytesAvailable()); + int numRead = ubxPort.readBytes(readBuffer, readBuffer.length); + System.out.println("Read " + numRead + " bytes."); + } + in.close(); + } catch (Exception e) { e.printStackTrace(); } + System.out.println("\nSetting read timeout mode to blocking with a timeout of 100ms"); + ubxPort.setComPortTimeouts(TIMEOUT_READ_BLOCKING, 100, 0); + in = ubxPort.getInputStream(); + try + { + for (int i = 0; i < 3; ++i) + { + System.out.println("\nReading #" + i); + System.out.println("Available: " + ubxPort.bytesAvailable()); + int numRead = ubxPort.readBytes(readBuffer, readBuffer.length); + System.out.println("Read " + numRead + " bytes."); + } + in.close(); + } catch (Exception e) { e.printStackTrace(); } + System.out.println("\nSetting read timeout mode to blocking with no timeout"); + ubxPort.setComPortTimeouts(TIMEOUT_READ_BLOCKING, 0, 0); + in = ubxPort.getInputStream(); + try + { + for (int i = 0; i < 3; ++i) + { + System.out.println("\nReading #" + i); + System.out.println("Available: " + ubxPort.bytesAvailable()); + int numRead = ubxPort.readBytes(readBuffer, readBuffer.length); + System.out.println("Read " + numRead + " bytes."); + } + in.close(); + } catch (Exception e) { e.printStackTrace(); } + System.out.println("\n\nClosing " + ubxPort.getDescriptivePortName() + ": " + ubxPort.closePort()); + try { Thread.sleep(1000); } catch (InterruptedException e1) { e1.printStackTrace(); } + System.out.println("Reopening " + ubxPort.getDescriptivePortName() + ": " + ubxPort.openPort() + "\n"); + ubxPort.setComPortTimeouts(TIMEOUT_READ_BLOCKING, 1000, 0); + in = ubxPort.getInputStream(); + try + { + for (int j = 0; j < 1000; ++j) + System.out.print((char)in.read()); + in.close(); + } catch (Exception e) { e.printStackTrace(); } + + System.out.println("\nClosing " + ubxPort.getDescriptivePortName() + ": " + ubxPort.closePort()); + } +} diff --git a/src/main/resources/Windows/x86/jSerialComm.dll b/src/main/resources/Windows/x86/jSerialComm.dll new file mode 100644 index 0000000..714e966 Binary files /dev/null and b/src/main/resources/Windows/x86/jSerialComm.dll differ diff --git a/src/main/resources/Windows/x86/jSerialComm.exp b/src/main/resources/Windows/x86/jSerialComm.exp new file mode 100644 index 0000000..810edc9 Binary files /dev/null and b/src/main/resources/Windows/x86/jSerialComm.exp differ diff --git a/src/main/resources/Windows/x86/jSerialComm.lib b/src/main/resources/Windows/x86/jSerialComm.lib new file mode 100644 index 0000000..7a6b43f Binary files /dev/null and b/src/main/resources/Windows/x86/jSerialComm.lib differ diff --git a/src/main/resources/Windows/x86_64/jSerialComm.dll b/src/main/resources/Windows/x86_64/jSerialComm.dll new file mode 100644 index 0000000..de2fcb6 Binary files /dev/null and b/src/main/resources/Windows/x86_64/jSerialComm.dll differ diff --git a/src/main/resources/Windows/x86_64/jSerialComm.exp b/src/main/resources/Windows/x86_64/jSerialComm.exp new file mode 100644 index 0000000..d6f8046 Binary files /dev/null and b/src/main/resources/Windows/x86_64/jSerialComm.exp differ diff --git a/src/main/resources/Windows/x86_64/jSerialComm.lib b/src/main/resources/Windows/x86_64/jSerialComm.lib new file mode 100644 index 0000000..01e6d27 Binary files /dev/null and b/src/main/resources/Windows/x86_64/jSerialComm.lib differ