6 files changed, 11 insertions, 53 deletions
diff --git a/tracker-hatire/lang/nl_NL.ts b/tracker-hatire/lang/nl_NL.ts
index aee6d99c..a1e613b0 100644
--- a/tracker-hatire/lang/nl_NL.ts
+++ b/tracker-hatire/lang/nl_NL.ts
@@ -16,14 +16,6 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Buggy serial port uses too much CPU</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Workaround</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
         <source>Zero</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/tracker-hatire/lang/ru_RU.ts b/tracker-hatire/lang/ru_RU.ts
index b25d092b..f7f3024d 100644
--- a/tracker-hatire/lang/ru_RU.ts
+++ b/tracker-hatire/lang/ru_RU.ts
@@ -16,14 +16,6 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Buggy serial port uses too much CPU</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Workaround</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
         <source>Zero</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/tracker-hatire/lang/stub.ts b/tracker-hatire/lang/stub.ts
index b920a489..0d22bf81 100644
--- a/tracker-hatire/lang/stub.ts
+++ b/tracker-hatire/lang/stub.ts
@@ -16,14 +16,6 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Buggy serial port uses too much CPU</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Workaround</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
         <source>Zero</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/tracker-hatire/lang/zh_CN.ts b/tracker-hatire/lang/zh_CN.ts
index b920a489..0d22bf81 100644
--- a/tracker-hatire/lang/zh_CN.ts
+++ b/tracker-hatire/lang/zh_CN.ts
@@ -16,14 +16,6 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Buggy serial port uses too much CPU</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Workaround</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
         <source>Zero</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/tracker-hatire/thread.cpp b/tracker-hatire/thread.cpp
index 07e97d78..3eb2579f 100644
--- a/tracker-hatire/thread.cpp
+++ b/tracker-hatire/thread.cpp
@@ -1,13 +1,15 @@
 #include "thread.hpp"
-#include "compat/sleep.hpp"
 #include "compat/base-path.hpp"
+#include "compat/sleep.hpp"
+
 #include <utility>
+#include <cstring>
 
 #include <QTextStream>
 #include <QTime>
-#include <QDebug>
+#include <QByteArray>
 
-#include <cstring>
+#include <QDebug>
 
 void hatire_thread::sendcmd_impl(const QByteArray &cmd)
 {
@@ -123,7 +125,8 @@ void hatire_thread::teardown_serial()
         }
         emit serial_debug_info(msg);
 
-        disconnect(&com_port, SIGNAL(readyRead()), nullptr, nullptr);
+        // XXX does this make any sense? -sh 20180703
+        //disconnect(&com_port, SIGNAL(readyRead()), nullptr, nullptr);
         com_port.close();
     }
 }
@@ -305,9 +308,6 @@ void hatire_thread::on_serial_read()
 
     if (sz > 0)
     {
-        stat.input(timer.elapsed_ms());
-        timer.start();
-
         QMutexLocker lck(&data_mtx);
         data_read.append(buf, sz);
     }
@@ -319,20 +319,16 @@ void hatire_thread::on_serial_read()
     }
 #endif
 
-    if (s.serial_bug_workaround || sz <= 0)
+    if (sz <= 0)
     {
         // qt can fire QSerialPort::readyRead() needlessly, causing a busy loop.
         // see https://github.com/opentrack/opentrack/issues/327#issuecomment-207941003
+
+        // this probably happens with flaky BT/usb-to-serial converters (?)
         constexpr int hz = 90;
         constexpr int ms = 1000/hz;
         portable::sleep(ms);
     }
-
-    if (throttle_timer.elapsed_ms() >= 3000)
-    {
-        throttle_timer.start();
-        qDebug() << "stat:" << "avg" << stat.avg() << "stddev" << stat.stddev();
-    }
 }
 
 QByteArray& hatire_thread::send_data_read_nolock()
diff --git a/tracker-hatire/thread.hpp b/tracker-hatire/thread.hpp
index 93c50c9e..5cecbdce 100644
--- a/tracker-hatire/thread.hpp
+++ b/tracker-hatire/thread.hpp
@@ -4,16 +4,12 @@
 #include "ftnoir_tracker_hat_settings.h"
 
 #include <QSerialPort>
-#include <QByteArray>
 #include <QThread>
 #include <QMutex>
 
 #include <QFile>
 #include <QCoreApplication>
 
-#include "compat/variance.hpp"
-#include "compat/timer.hpp"
-
 enum results
 {
     result_ok,
@@ -34,7 +30,7 @@ struct serial_result
     serial_result(results code, const QString& error) : error(error), code(code) {}
 
     QString error;
-    results code;
+    results code { result_error };
 };
 
 class hatire_thread : public QThread
@@ -51,8 +47,6 @@ class hatire_thread : public QThread
     QByteArray data_read;
     serial_t com_port;
     TrackerSettings s;
-    variance stat;
-    Timer timer, throttle_timer;
     char buf[1024];
 
     void run() override;