From bb08422f14659e811e11d15cc5365b3b91fccef0 Mon Sep 17 00:00:00 2001
From: Tasuku Suzuki <tasuku.suzuki@qt.io>
Date: Fri, 9 Dec 2016 10:28:18 +0900
Subject: add AM support

When ALS2016, this backend supported FM only, AM was never tested.

Change-Id: If8365d24441cd2310d85071cb0893341b12ba920
---
 rtlfmradiotunercontrol.cpp | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/rtlfmradiotunercontrol.cpp b/rtlfmradiotunercontrol.cpp
index 83096b6..863cb06 100644
--- a/rtlfmradiotunercontrol.cpp
+++ b/rtlfmradiotunercontrol.cpp
@@ -48,11 +48,11 @@ private:
     };
 
     QMap<int, QString> fmFrequenciesTokyo = {
-          { 76100, QString::fromUtf8("Inter FM") }
-        , { 77100, QString::fromUtf8("The Open University of Japan") }
-        , { 80000, QString::fromUtf8("TOKYO FM") }
-        , { 81300, QString::fromUtf8("J-WAVE") }
-        , { 82500, QString::fromUtf8("NHK FM Tokyo") }
+          { 76100000, QString::fromUtf8("Inter FM") }
+        , { 77100000, QString::fromUtf8("The Open University of Japan") }
+        , { 80000000, QString::fromUtf8("TOKYO FM") }
+        , { 81300000, QString::fromUtf8("J-WAVE") }
+        , { 82500000, QString::fromUtf8("NHK FM Tokyo") }
     };
 };
 
@@ -71,7 +71,6 @@ RtlFmRadioTunerControl::Private::Private(RtlFmRadioTunerControl *parent)
     , step(0)
 {
     connect(q, &RtlFmRadioTunerControl::stationFound, [this](int frequency, const QString &name) {
-        qDebug() << frequency << name;
         if (rtlFm.state() != QProcess::NotRunning)
             q->start();
     });
@@ -89,11 +88,12 @@ RtlFmRadioTunerControl::Private::Private(RtlFmRadioTunerControl *parent)
             break;
         }
         if (knownBands.contains(frequency)) {
-            emit q->stationFound(frequency, knownBands.value(frequency));
+            QMetaObject::invokeMethod(q, "stationFound", Qt::QueuedConnection, Q_ARG(int, frequency), Q_ARG(QString, knownBands.value(frequency)));
             if (timer.isActive() && searchOne)
                 timer.stop();
         }
     });
+
     connect(&timer, &QTimer::timeout, [this]() {
         q->setFrequency(frequency + step);
     });
@@ -167,7 +167,7 @@ int RtlFmRadioTunerControl::frequencyStep(QRadioTuner::Band band) const
         ret = 1000; // 1kHz
         break;
     case QRadioTuner::FM:
-        ret = 100; // 100Hz
+        ret = 100000; // 0.1 MHz
         break;
     default:
         break;
@@ -180,10 +180,10 @@ QPair<int,int> RtlFmRadioTunerControl::frequencyRange(QRadioTuner::Band band) co
     QPair<int,int> ret;
     switch (band) {
     case QRadioTuner::AM:
-        ret = qMakePair<int,int>(594000, 1242000);
+        ret = qMakePair<int,int>(531000, 1602000);
         break;
     case QRadioTuner::FM:
-        ret = qMakePair<int,int>(76100, 82500);
+        ret = qMakePair<int,int>(76000000, 107900000);
         break;
     default:
         break;
@@ -313,7 +313,19 @@ void RtlFmRadioTunerControl::start()
     d->aplay.start(QStringLiteral("aplay"), QStringList() << QStringLiteral("-r") << QStringLiteral("48000") << QStringLiteral("-f") << QStringLiteral("S16_LE"));
     d->aplay.waitForStarted();
 //    d->rtlFm.start(QStringLiteral("sudo"), QStringList() << QStringLiteral("rtl_fm -f %1 -M wbfm -s 200000 -r 48000").arg(d->frequency * 1000).split(" "));
-    d->rtlFm.start(QStringLiteral("rtl_fm"), QStringList() << QStringLiteral("-f %1 -M wbfm -s 200000 -r 48000").arg(d->frequency * 1000).split(" "));
+    QString modulation;
+    switch (d->band) {
+    case QRadioTuner::AM:
+        modulation = QStringLiteral("-M wbfm");
+        break;
+    case QRadioTuner::FM:
+        modulation = QStringLiteral("-M am");
+        break;
+    default:
+        break;
+    }
+
+    d->rtlFm.start(QStringLiteral("rtl_fm"), QStringLiteral("-f %1 %2 -s 200000 -r 48000").arg(d->frequency).arg(modulation).split(" "));
     d->rtlFm.waitForStarted();
     d->state = QRadioTuner::ActiveState;
 }
-- 
cgit 1.2.3-korg