make use of alsacore and hal bindings to control audio volume

Change-Id: Ib7e90a7d2a148a067566bc04929fda445b46ab45
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 74 insertions, 0 deletions

diff --git a/app/mixer.h b/app/mixer.h
new file mode 100644
index 0000000..2c25562
--- /dev/null
+++ b/app/mixer.h
@@ -0,0 +1,74 @@
+#ifndef MIXER_H
+#define MIXER_H
+
+#include <QObject>
+#include <QSharedPointer>
+#include <QVariantList>
+#include "qafbwsclient.h"
+#include "qafbwsmsg.h"
+
+class Mixer
+    : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QVariantList hals READ hals NOTIFY halsChanged)
+    Q_PROPERTY(QString activeHal READ activeHal WRITE setActiveHal NOTIFY activeHalChanged)
+
+    Q_PROPERTY(int masterVolume READ masterVolume WRITE setMasterVolume NOTIFY masterVolumeChanged)
+    Q_PROPERTY(int pcmVolume READ pcmVolume WRITE setPcmVolume NOTIFY pcmVolumeChanged)
+    Q_PROPERTY(int microphoneVolume READ microphoneVolume WRITE setMicrophoneVolume NOTIFY microphoneVolumeChanged)
+
+public:
+    explicit Mixer(QObject* parent = nullptr);
+    Mixer(const Mixer&) = delete;
+
+    Q_INVOKABLE void open(const QUrl& url);
+    Q_INVOKABLE QVariantList hals() const;
+    Q_INVOKABLE QString activeHal() const;
+    Q_INVOKABLE void setActiveHal(QString h);
+
+    Q_INVOKABLE int masterVolume() const;
+    Q_INVOKABLE int pcmVolume() const;
+    Q_INVOKABLE int microphoneVolume() const;
+
+    Q_INVOKABLE void setMasterVolume(int v);
+    Q_INVOKABLE void setPcmVolume(int v);
+    Q_INVOKABLE void setMicrophoneVolume(int v);
+
+signals:
+    void halsChanged();
+    void activeHalChanged();
+    void masterVolumeChanged();
+    void pcmVolumeChanged();
+    void microphoneVolumeChanged();
+
+private slots:
+    void onClientConnected();
+    void onHalListClosed();
+    void onGetMasterVolume();
+    void onGetPcmVolume();
+    void onGetMicrophoneVolume();
+    void onSetMasterVolume();
+    void onSetPcmVolume();
+    void onSetMicrophoneVolume();
+
+private:
+    int m_masterVolume;
+    int m_pcmVolume;
+    int m_microphoneVolume;
+    int m_masterVolumePending;
+    int m_pcmVolumePending;
+    int m_microphoneVolumePending;
+    QAfbWsClient m_client;
+    QVariantList m_hallist;
+    QString m_activeHal;
+    QSharedPointer<QAfbWsMsg> m_alsacoreHallist;
+    QSharedPointer<QAfbWsMsg> m_getMasterVolume;
+    QSharedPointer<QAfbWsMsg> m_getPcmVolume;
+    QSharedPointer<QAfbWsMsg> m_getMicrophoneVolume;
+    QSharedPointer<QAfbWsMsg> m_setMasterVolume;
+    QSharedPointer<QAfbWsMsg> m_setPcmVolume;
+    QSharedPointer<QAfbWsMsg> m_setMicrophoneVolume;
+};
+
+#endif // MIXER_H