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|
From: gohai <gottfried.haider@gmail.com>
Date: Wed, 11 Sep 2013 00:07:55 -0700
Subject: Make it possible to retrieve information about the USB device that
provides the serial port
getPortProperties() returns a map with keys and values as strings. The currently available keys are: idProduct (lowercase hexadecimal zero-padded to four digits), idVendor (as idProduct), manufacturer, product, serial. This is currently implemented for Linux and Mac OS X.
Origin: other, https://github.com/gohai/java-simple-serial-connector/commit/5c61d622b71ee5ece5ab3b31397e2cca34eed8e9
Forwarded: https://github.com/scream3r/java-simple-serial-connector/pull/33
Bug-Debian: http://bugs.debian.org/734820
---
src/cpp/_nix_based/jssc.cpp | 135 +++++++++++++++++++++++++++++++
src/cpp/jssc_SerialNativeInterface.h | 8 ++
src/java/jssc/SerialNativeInterface.java | 2 +
src/java/jssc/SerialPortList.java | 75 +++++++++++++++++
4 files changed, 220 insertions(+)
diff --git a/src/cpp/_nix_based/jssc.cpp b/src/cpp/_nix_based/jssc.cpp
index 230e248..9468bc0 100644
--- a/src/cpp/_nix_based/jssc.cpp
+++ b/src/cpp/_nix_based/jssc.cpp
@@ -40,7 +40,12 @@
#include <string.h>//Needed for select() function
#endif
#ifdef __APPLE__
+ #include <CoreFoundation/CoreFoundation.h>
+ #include <IOKit/IOKitLib.h>
+ #include <IOKit/serial/IOSerialKeys.h>
+ #include <IOKit/usb/USBSpec.h>
#include <serial/ioss.h>//Needed for IOSSIOSPEED in Mac OS X (Non standard baudrate)
+ #include <sys/param.h> // Needed for MAXPATHLEN
#endif
#include <jni.h>
@@ -865,3 +870,133 @@ JNIEXPORT jintArray JNICALL Java_jssc_SerialNativeInterface_getLinesStatus
env->SetIntArrayRegion(returnArray, 0, 4, returnValues);
return returnArray;
}
+
+JNIEXPORT jobjectArray JNICALL Java_jssc_SerialNativeInterface_getPortProperties
+ (JNIEnv *env, jclass cls, jstring portName) {
+ const char* portNameChar = (const char*)env->GetStringUTFChars(portName, NULL);
+ jclass stringClass = env->FindClass("Ljava/lang/String;");
+ jobjectArray ret = env->NewObjectArray(5, stringClass, NULL);
+
+#ifdef __APPLE__
+
+ // this code is based on QtSerialPort
+ CFMutableDictionaryRef matching = IOServiceMatching(kIOSerialBSDServiceValue);
+ io_iterator_t iter = 0;
+ kern_return_t kr = IOServiceGetMatchingServices(kIOMasterPortDefault, matching, &iter);
+ if (kr != kIOReturnSuccess) {
+ env->ReleaseStringUTFChars(portName, portNameChar);
+ return ret;
+ }
+
+ io_registry_entry_t service;
+ while ((service = IOIteratorNext(iter))) {
+
+ // compare portName against cu and tty devices
+ bool found = false;
+
+ CFTypeRef cu = 0;
+ cu = IORegistryEntrySearchCFProperty(service, kIOServicePlane, CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0);
+ if (cu) {
+ char buffer[MAXPATHLEN];
+ CFStringGetCString(CFStringRef(cu), buffer, sizeof(buffer), kCFStringEncodingUTF8);
+ //fprintf(stdout, "getPortProperties: %s\n", buffer);
+ //fflush(stdout);
+ if (strcmp(portNameChar, buffer) == 0) {
+ found = true;
+ }
+ CFRelease(cu);
+ }
+
+ CFTypeRef tty = 0;
+ tty = IORegistryEntrySearchCFProperty(service, kIOServicePlane, CFSTR(kIODialinDeviceKey), kCFAllocatorDefault, 0);
+ if (tty) {
+ char buffer[MAXPATHLEN];
+ CFStringGetCString(CFStringRef(tty), buffer, sizeof(buffer), kCFStringEncodingUTF8);
+ //fprintf(stdout, "getPortProperties: %s\n", buffer);
+ //fflush(stdout);
+ if (strcmp(portNameChar, buffer) == 0) {
+ found = true;
+ }
+ CFRelease(tty);
+ }
+
+ if (!found) {
+ // not port we're looking for
+ //fprintf(stderr, "getPortProperties: %s not found", portNameChar);
+ //fflush(stderr);
+ IOObjectRelease(service);
+ continue;
+ }
+
+ io_registry_entry_t entry = service;
+ do {
+ int val = 0;
+ char buffer[255];
+
+ CFTypeRef idProduct = 0;
+ idProduct = IORegistryEntrySearchCFProperty(entry, kIOServicePlane, CFSTR(kUSBProductID), kCFAllocatorDefault, 0);
+ if (idProduct && !env->GetObjectArrayElement(ret, 0)) {
+ CFNumberGetValue(CFNumberRef(idProduct), kCFNumberIntType, &val);
+ sprintf(buffer, "%04x", val);
+ jstring tmp = env->NewStringUTF(buffer);
+ env->SetObjectArrayElement(ret, 0, tmp);
+ env->DeleteLocalRef(tmp);
+ CFRelease(idProduct);
+ }
+
+ CFTypeRef idVendor = 0;
+ idVendor = IORegistryEntrySearchCFProperty(entry, kIOServicePlane, CFSTR(kUSBVendorID), kCFAllocatorDefault, 0);
+ if (idVendor && !env->GetObjectArrayElement(ret, 1)) {
+ CFNumberGetValue(CFNumberRef(idVendor), kCFNumberIntType, &val);
+ sprintf(buffer, "%04x", val);
+ jstring tmp = env->NewStringUTF(buffer);
+ env->SetObjectArrayElement(ret, 1, tmp);
+ env->DeleteLocalRef(tmp);
+ CFRelease(idVendor);
+ }
+
+ CFTypeRef manufacturer = 0;
+ manufacturer = IORegistryEntrySearchCFProperty(entry, kIOServicePlane, CFSTR(kUSBVendorString), kCFAllocatorDefault, 0);
+ if (manufacturer && !env->GetObjectArrayElement(ret, 2)) {
+ CFStringGetCString(CFStringRef(manufacturer), buffer, sizeof(buffer), kCFStringEncodingUTF8);
+ jstring tmp = env->NewStringUTF(buffer);
+ env->SetObjectArrayElement(ret, 2, tmp);
+ env->DeleteLocalRef(tmp);
+ CFRelease(manufacturer);
+ }
+
+ CFTypeRef product = 0;
+ product = IORegistryEntrySearchCFProperty(entry, kIOServicePlane, CFSTR(kUSBProductString), kCFAllocatorDefault, 0);
+ if (product && !env->GetObjectArrayElement(ret, 3)) {
+ CFStringGetCString(CFStringRef(product), buffer, sizeof(buffer), kCFStringEncodingUTF8);
+ jstring tmp = env->NewStringUTF(buffer);
+ env->SetObjectArrayElement(ret, 3, tmp);
+ env->DeleteLocalRef(tmp);
+ CFRelease(product);
+ }
+
+ CFTypeRef serial = 0;
+ serial = IORegistryEntrySearchCFProperty(entry, kIOServicePlane, CFSTR(kUSBSerialNumberString), kCFAllocatorDefault, 0);
+ if (serial && !env->GetObjectArrayElement(ret, 4)) {
+ CFStringGetCString(CFStringRef(serial), buffer, sizeof(buffer), kCFStringEncodingUTF8);
+ jstring tmp = env->NewStringUTF(buffer);
+ env->SetObjectArrayElement(ret, 4, tmp);
+ env->DeleteLocalRef(tmp);
+ CFRelease(serial);
+ }
+
+ kr = IORegistryEntryGetParentEntry(entry, kIOServicePlane, &entry);
+ } while (kr == kIOReturnSuccess);
+
+ IOObjectRelease(entry);
+
+ IOObjectRelease(service);
+ }
+
+ IOObjectRelease(iter);
+
+#endif // __APPLE__
+
+ env->ReleaseStringUTFChars(portName, portNameChar);
+ return ret;
+}
diff --git a/src/cpp/jssc_SerialNativeInterface.h b/src/cpp/jssc_SerialNativeInterface.h
index e3182e1..3d64631 100644
--- a/src/cpp/jssc_SerialNativeInterface.h
+++ b/src/cpp/jssc_SerialNativeInterface.h
@@ -183,6 +183,14 @@ JNIEXPORT jintArray JNICALL Java_jssc_SerialNativeInterface_getLinesStatus
JNIEXPORT jboolean JNICALL Java_jssc_SerialNativeInterface_sendBreak
(JNIEnv *, jobject, jlong, jint);
+/*
+ * Class: jssc_SerialNativeInterface
+ * Method: getPortIdProduct
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jobjectArray JNICALL Java_jssc_SerialNativeInterface_getPortProperties
+ (JNIEnv *, jclass, jstring);
+
#ifdef __cplusplus
}
#endif
diff --git a/src/java/jssc/SerialNativeInterface.java b/src/java/jssc/SerialNativeInterface.java
index 50eec84..443b791 100644
--- a/src/java/jssc/SerialNativeInterface.java
+++ b/src/java/jssc/SerialNativeInterface.java
@@ -469,4 +469,6 @@ public class SerialNativeInterface {
* @since 0.8
*/
public native boolean sendBreak(long handle, int duration);
+
+ public static native String[] getPortProperties(String portName);
}
diff --git a/src/java/jssc/SerialPortList.java b/src/java/jssc/SerialPortList.java
index e65df18..0e4b238 100644
--- a/src/java/jssc/SerialPortList.java
+++ b/src/java/jssc/SerialPortList.java
@@ -25,7 +25,11 @@
package jssc;
import java.io.File;
+import java.io.FileReader;
import java.util.Comparator;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Scanner;
import java.util.TreeSet;
import java.util.regex.Pattern;
@@ -296,6 +300,77 @@ public class SerialPortList {
return getUnixBasedPortNames(searchPath, pattern, comparator);
}
+ public static Map<String, String> getPortProperties(String portName) {
+ if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_LINUX) {
+ return getLinuxPortProperties(portName);
+ } else if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_MAC_OS_X) {
+ return getNativePortProperties(portName);
+ } else if(SerialNativeInterface.getOsType() == SerialNativeInterface.OS_WINDOWS){
+ // TODO
+ return new HashMap<String, String>();
+ } else {
+ return new HashMap<String, String>();
+ }
+ }
+
+ public static Map<String, String> getLinuxPortProperties(String portName) {
+ Map<String, String> props = new HashMap<String, String>();
+ try {
+ // portName has the format /dev/ttyUSB0
+ String dev = portName.split("/")[2];
+ File sysfsNode = new File("/sys/bus/usb-serial/devices/"+dev);
+
+ // resolve the symbolic link and store the resulting components in an array
+ String[] sysfsPath = sysfsNode.getCanonicalPath().split("/");
+
+ // walk the tree to the root
+ for (int i=sysfsPath.length-2; 0 < i; i--) {
+ String curPath = "/";
+ for (int j=1; j <= i; j++) {
+ curPath += sysfsPath[j]+"/";
+ }
+
+ // look for specific attributes
+ String[] attribs = { "idProduct", "idVendor", "manufacturer", "product", "serial" };
+ for (int j=0; j < attribs.length; j++) {
+ try {
+ Scanner in = new Scanner(new FileReader(curPath+attribs[j]));
+ // we treat the values just as strings
+ props.put(attribs[j], in.next());
+ } catch (Exception e) {
+ // ignore the attribute
+ }
+ }
+
+ // stop once we have at least one attribute
+ if (0 < props.size()) {
+ break;
+ }
+ }
+ } catch (Exception e) {
+ // nothing to do, return what we have so far
+ }
+ return props;
+ }
+
+ public static Map<String, String> getNativePortProperties(String portName) {
+ Map<String, String> props = new HashMap<String, String>();
+ try {
+ // use JNI functions to read those properties
+ String[] names = { "idProduct", "idVendor", "manufacturer", "product", "serial" };
+ String[] values = SerialNativeInterface.getPortProperties(portName);
+
+ for (int i=0; i < names.length; i++) {
+ if (values[i] != null) {
+ props.put(names[i], values[i]);
+ }
+ }
+ } catch (Exception e) {
+ // nothing to do, return what we have so far
+ }
+ return props;
+ }
+
/**
* Get serial port names in Windows
*
|
