qeditor: many enhancement

Qeditor has been improved in many ways:
- it can now dump all registers, just like the lua DUMPER.dump_all() command
- several crash were fixed
- when connected to a hwstub command, one can correctly edit individual fields
- the code was simplified in several places

Change-Id: I092b99ce3a12ff6417552de61d62c65f706bcff0

utils/regtools/qeditor/aux.cpp

@@ -320,6 +320,47 @@ void SocFieldEditor::setField(uint field)
     setText(QString("0x%1").arg(field, digits, 16, QChar('0')));
 }
 
+/**
+ * SocFieldCachedItemDelegate
+ */
+
+QString SocFieldCachedItemDelegate::displayText(const QVariant& value, const QLocale& locale) const
+{
+    // FIXME see QTBUG-30392
+    if(value.type() == QVariant::UserType && value.userType() == qMetaTypeId< SocFieldCachedValue >())
+    {
+        const SocFieldCachedValue& v = value.value< SocFieldCachedValue >();
+        int bitcount = v.field().last_bit - v.field().first_bit;
+        return QString("0x%1").arg(v.value(), (bitcount + 3) / 4, 16, QChar('0'));
+    }
+    else
+        return QStyledItemDelegate::displayText(value, locale);
+}
+
+/**
+ * SocFieldCachedEditor
+ */
+SocFieldCachedEditor::SocFieldCachedEditor(QWidget *parent)
+    :SocFieldEditor(soc_reg_field_t(), parent)
+{
+}
+
+SocFieldCachedEditor::~SocFieldCachedEditor()
+{
+}
+
+SocFieldCachedValue SocFieldCachedEditor::value() const
+{
+    return SocFieldCachedValue(m_value.field(), field());
+}
+
+void SocFieldCachedEditor::setValue(SocFieldCachedValue val)
+{
+    m_value = val;
+    SetRegField(m_value.field());
+    setField(m_value.value());
+}
+
 /**
  * SocFieldEditorCreator
  */
@@ -333,6 +374,19 @@ QByteArray SocFieldEditorCreator::valuePropertyName() const
     return QByteArray("field");
 }
 
+/**
+ * SocFieldCachedEditorCreator
+ */
+QWidget *SocFieldCachedEditorCreator::createWidget(QWidget *parent) const
+{
+    return new SocFieldCachedEditor(parent);
+}
+
+QByteArray SocFieldCachedEditorCreator::valuePropertyName() const
+{
+    return QByteArray("value");
+}
+
 /**
  * RegSexyDisplay
  */

utils/regtools/qeditor/aux.h

@@ -106,6 +106,7 @@ public:
 
     uint field() const;
     void setField(uint field);
+    void SetRegField(const soc_reg_field_t& field) { m_reg_field = field; }
 
 protected:
     SocFieldValidator *m_validator;
@@ -126,6 +127,55 @@ protected:
     soc_reg_field_t m_field;
 };
 
+class SocFieldCachedValue
+{
+public:
+    SocFieldCachedValue():m_value(0) {}
+    SocFieldCachedValue(const soc_reg_field_t& field, uint value)
+        :m_field(field), m_value(value) {}
+    virtual ~SocFieldCachedValue() {}
+    const soc_reg_field_t& field() const { return m_field; }
+    uint value() const { return m_value; }
+protected:
+    soc_reg_field_t m_field;
+    uint m_value;
+};
+
+Q_DECLARE_METATYPE(SocFieldCachedValue)
+
+class SocFieldCachedItemDelegate : public QStyledItemDelegate
+{
+public:
+    SocFieldCachedItemDelegate(QObject *parent = 0):QStyledItemDelegate(parent) {}
+
+    virtual QString displayText(const QVariant& value, const QLocale& locale) const;
+};
+
+class SocFieldCachedEditor : public SocFieldEditor
+{
+    Q_OBJECT
+    Q_PROPERTY(SocFieldCachedValue value READ value WRITE setValue USER true)
+public:
+    SocFieldCachedEditor(QWidget *parent = 0);
+    virtual ~SocFieldCachedEditor();
+
+    SocFieldCachedValue value() const;
+    void setValue(SocFieldCachedValue field);
+protected:
+    SocFieldCachedValue m_value;
+};
+
+class SocFieldCachedEditorCreator : public QItemEditorCreatorBase
+{
+public:
+    SocFieldCachedEditorCreator() {}
+
+    virtual QWidget *createWidget(QWidget *parent) const;
+    virtual QByteArray valuePropertyName() const;
+
+protected:
+};
+
 class RegSexyDisplay : public QWidget
 {
     Q_OBJECT

utils/regtools/qeditor/backend.cpp

@@ -90,9 +90,10 @@ IoBackend *Backend::CreateHWStubIoBackend(HWStubDevice *dev)
  * FileIoBackend
  */
 
-FileIoBackend::FileIoBackend(const QString& filename)
+FileIoBackend::FileIoBackend(const QString& filename, const QString& soc_name)
 {
     m_filename = filename;
+    m_soc = soc_name;
     Reload();
 }
 
@@ -163,7 +164,7 @@ bool FileIoBackend::Commit()
     while(it.hasNext())
     {
         it.next();
-        out << it.key() << " = " << it.value() << "\n";
+        out << it.key() << " = " << hex << showbase << it.value() << "\n";
     }
     out.flush();
     return file.flush();
@@ -174,6 +175,16 @@ bool FileIoBackend::Commit()
  * HWStubDevice
  */
 HWStubDevice::HWStubDevice(struct libusb_device *dev)
+{
+    Init(dev);
+}
+
+HWStubDevice::HWStubDevice(const HWStubDevice *dev)
+{
+    Init(dev->m_dev);
+}
+
+void HWStubDevice::Init(struct libusb_device *dev)
 {
     libusb_ref_device(dev);
     m_dev = dev;
@@ -325,7 +336,7 @@ QString HWStubIoBackend::GetSocName()
 
 HWStubIoBackend::~HWStubIoBackend()
 {
-    m_dev->Close();
+    delete m_dev;
 }
 
 bool HWStubIoBackend::ReadRegister(soc_addr_t addr, soc_word_t& value)
@@ -530,3 +541,31 @@ bool BackendHelper::ReadRegisterField(const QString& dev, const QString& reg,
     v = (v & field_ref.GetField().bitmask()) >> field_ref.GetField().first_bit;
     return true;
 }
+
+bool BackendHelper::DumpAllRegisters(const QString& filename)
+{
+    FileIoBackend b(filename, QString::fromStdString(m_soc.GetSoc().name));
+    BackendHelper bh(&b, m_soc);
+    for(size_t i = 0; i < m_soc.GetSoc().dev.size(); i++)
+    {
+        const soc_dev_t& dev = m_soc.GetSoc().dev[i];
+        for(size_t j = 0; j < dev.addr.size(); j++)
+        {
+            QString devname = QString::fromStdString(dev.addr[j].name);
+            for(size_t k = 0; k < dev.reg.size(); k++)
+            {
+                const soc_reg_t& reg = dev.reg[k];
+                for(size_t l = 0; l < reg.addr.size(); l++)
+                {
+                    QString regname = QString::fromStdString(reg.addr[l].name);
+                    soc_word_t val;
+                    if(!ReadRegister(devname, regname, val))
+                        return false;
+                    if(!bh.WriteRegister(devname, regname, val))
+                        return false;
+                }
+            }
+        }
+    }
+    return b.Commit();
+}

utils/regtools/qeditor/backend.h

@@ -85,7 +85,7 @@ class FileIoBackend : public IoBackend
 {
     Q_OBJECT
 public:
-    FileIoBackend(const QString& filename);
+    FileIoBackend(const QString& filename, const QString& soc_name = "");
 
     virtual bool SupportAccess(AccessType type) { return type == ByName; }
     virtual QString GetSocName();
@@ -113,6 +113,7 @@ class HWStubDevice
 {
 public:
     HWStubDevice(struct libusb_device *dev);
+    HWStubDevice(const HWStubDevice *dev);
     ~HWStubDevice();
     bool IsValid();
     bool Open();
@@ -130,6 +131,7 @@ public:
 
 protected:
     bool Probe();
+    void Init(struct libusb_device *dev);
 
     bool m_valid;
     struct libusb_device *m_dev;
@@ -146,6 +148,7 @@ class HWStubIoBackend : public IoBackend
 {
     Q_OBJECT
 public:
+    // NOTE: HWStubIoBackend takes ownership of the device and will delete it
     HWStubIoBackend(HWStubDevice *dev);
     virtual ~HWStubIoBackend();
 
@@ -310,6 +313,8 @@ public:
     bool GetRegRef(const SocDevRef& dev, const QString& reg, SocRegRef& ref);
     bool GetFieldRef(const SocRegRef& reg, const QString& field, SocFieldRef& ref);
     bool GetRegisterAddress(const QString& dev, const QString& reg, soc_addr_t& addr);
+    bool DumpAllRegisters(const QString& filename);
+
 private:
     IoBackend *m_io_backend;
     const SocRef& m_soc;

utils/regtools/qeditor/regdisplaypanel.cpp

@@ -136,7 +136,6 @@ RegDisplayPanel::RegDisplayPanel(QWidget *parent, IoBackend *io_backend, const S
     m_raw_val_edit->GetLineEdit()->setValidator(new SocFieldValidator(m_raw_val_edit));
     m_raw_val_edit->EnableSCT(!!(reg.flags & REG_HAS_SCT));
     m_raw_val_edit->GetLineEdit()->setFont(m_reg_font);
-    connect(m_raw_val_edit->GetLineEdit(), SIGNAL(returnPressed()), this, SLOT(OnRawRegValueReturnPressed()));
     QHBoxLayout *raw_val_layout = new QHBoxLayout;
     raw_val_layout->addStretch();
     raw_val_layout->addWidget(m_raw_val_name);
@@ -157,28 +156,39 @@ RegDisplayPanel::RegDisplayPanel(QWidget *parent, IoBackend *io_backend, const S
         QTableWidgetItem *item = new QTableWidgetItem(bits_str);
         item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
         item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, 0, item);
+        m_value_table->setItem(row, FieldBitsColumn, item);
         item = new QTableWidgetItem(QString(field.name.c_str()));
         item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, 1, item);
+        m_value_table->setItem(row, FieldNameColumn, item);
+        item = new QTableWidgetItem();
+        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
+        item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue()));
+        item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
+        m_value_table->setItem(row, FieldValueColumn, item);
+        item = new QTableWidgetItem("");
+        item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
+        item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
+        m_value_table->setItem(row, FieldMeaningColumn, item);
         item = new QTableWidgetItem(QString(field.desc.c_str()));
         item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, 4, item);
+        m_value_table->setItem(row, FieldDescColumn, item);
     }
-    m_value_table->setHorizontalHeaderItem(0, new QTableWidgetItem("Bits"));
-    m_value_table->setHorizontalHeaderItem(1, new QTableWidgetItem("Name"));
-    m_value_table->setHorizontalHeaderItem(2, new QTableWidgetItem("Value"));
-    m_value_table->setHorizontalHeaderItem(3, new QTableWidgetItem("Meaning"));
-    m_value_table->setHorizontalHeaderItem(4, new QTableWidgetItem("Description"));
+    m_value_table->setHorizontalHeaderItem(FieldBitsColumn, new QTableWidgetItem("Bits"));
+    m_value_table->setHorizontalHeaderItem(FieldNameColumn, new QTableWidgetItem("Name"));
+    m_value_table->setHorizontalHeaderItem(FieldValueColumn, new QTableWidgetItem("Value"));
+    m_value_table->setHorizontalHeaderItem(FieldMeaningColumn, new QTableWidgetItem("Meaning"));
+    m_value_table->setHorizontalHeaderItem(FieldDescColumn, new QTableWidgetItem("Description"));
     m_value_table->verticalHeader()->setVisible(false);
     m_value_table->resizeColumnsToContents();
     m_value_table->horizontalHeader()->setStretchLastSection(true);
     m_value_table->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
-    m_table_delegate = new QStyledItemDelegate(this);
+    SocFieldCachedItemDelegate *m_table_delegate = new SocFieldCachedItemDelegate(this);
     m_table_edit_factory = new QItemEditorFactory();
-    m_regedit_creator = new RegItemEditorCreator();
-    m_table_edit_factory->registerEditor(QVariant::String, m_regedit_creator);
+    SocFieldCachedEditorCreator *m_table_edit_creator = new SocFieldCachedEditorCreator();
+    // FIXME see QTBUG-30392
+    m_table_edit_factory->registerEditor((QVariant::Type)qMetaTypeId< SocFieldCachedValue >(),
+        m_table_edit_creator);
     m_table_delegate->setItemEditorFactory(m_table_edit_factory);
     m_value_table->setItemDelegate(m_table_delegate);
 
@@ -209,8 +219,12 @@ RegDisplayPanel::RegDisplayPanel(QWidget *parent, IoBackend *io_backend, const S
     setLayout(layout);
     AllowWrite(false);
 
+    m_ignore_cell_change = false;
     // load data
     Reload();
+
+    connect(m_raw_val_edit->GetLineEdit(), SIGNAL(returnPressed()), this, SLOT(OnRawRegValueReturnPressed()));
+    connect(m_value_table, SIGNAL(cellChanged(int, int)), this, SLOT(OnRegFieldValueChanged(int, int)));
 }
 
 RegDisplayPanel::~RegDisplayPanel()
@@ -239,11 +253,12 @@ void RegDisplayPanel::Reload()
         m_raw_val_edit->hide();
     }
 
-    int row = 0;
-    foreach(const soc_reg_field_t& field, reg.field)
+    m_ignore_cell_change = true;
+    for(size_t row = 0; row < reg.field.size(); row++)
     {
-        QTableWidgetItem *item = new QTableWidgetItem();
-        QTableWidgetItem *desc_item = new QTableWidgetItem();
+        const soc_reg_field_t& field = reg.field[row];
+        QTableWidgetItem *item = m_value_table->item(row, FieldValueColumn);
+        QTableWidgetItem *desc_item = m_value_table->item(row, FieldMeaningColumn);
         if(has_value)
         {
             soc_word_t v = (value & field.bitmask()) >> field.first_bit;
@@ -251,25 +266,20 @@ void RegDisplayPanel::Reload()
             foreach(const soc_reg_field_value_t& rval, field.value)
                 if(v == rval.value)
                     value_name = rval.name.c_str();
-            const char *fmt = "%lu";
-            // heuristic
-            if((field.last_bit - field.first_bit + 1) > 16)
-                fmt = "0x%lx";
-            item->setText(QString().sprintf(fmt, (unsigned long)v));
-            item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-
+            item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue(field, v)));
             if(value_name.size() != 0)
-            {
                 desc_item->setText(value_name);
-                desc_item->setTextAlignment(Qt::AlignVCenter | Qt::AlignHCenter);
-            }
         }
+        else
+            item->setData(Qt::DisplayRole, QVariant::fromValue(SocFieldCachedValue()));
         item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        desc_item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
-        m_value_table->setItem(row, 2, item);
-        m_value_table->setItem(row, 3, desc_item);
-        row++;
+        if(m_allow_write)
+            item->setFlags(item->flags() | Qt::ItemIsEditable);
     }
+    m_ignore_cell_change = false;
+
+    m_value_table->resizeColumnsToContents();
+    m_value_table->horizontalHeader()->setStretchLastSection(true);
 }
 
 void RegDisplayPanel::AllowWrite(bool en)
@@ -277,6 +287,7 @@ void RegDisplayPanel::AllowWrite(bool en)
     m_allow_write = en;
     if(m_raw_val_edit)
         m_raw_val_edit->SetReadOnly(m_io_backend->IsReadOnly() || !m_allow_write);
+    Reload();
 }
 
 IoBackend::WriteMode RegDisplayPanel::EditModeToWriteMode(RegLineEdit::EditMode mode)
@@ -303,7 +314,23 @@ void RegDisplayPanel::OnRawRegValueReturnPressed()
     BackendHelper helper(m_io_backend, m_reg);
     helper.WriteRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(),
         val, mode);
-    // FIXME: we should notify the UI to read value back because it has changed
+    Reload();
+}
+
+void RegDisplayPanel::OnRegFieldValueChanged(int row, int col)
+{
+    if(m_ignore_cell_change || col != FieldValueColumn)
+        return;
+    QTableWidgetItem *item = m_value_table->item(row, col);
+    SocFieldCachedValue val = item->data(Qt::DisplayRole).value< SocFieldCachedValue >();
+    BackendHelper helper(m_io_backend, m_reg);
+    soc_word_t regval;
+    if(!helper.ReadRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(), regval))
+        return;
+    regval = (regval & ~val.field().bitmask()) |
+        ((val.value() << val.field().first_bit) & val.field().bitmask());
+    helper.WriteRegister(m_reg.GetDevAddr().name.c_str(), m_reg.GetRegAddr().name.c_str(),
+        regval, IoBackend::Write);
     Reload();
 }
 

utils/regtools/qeditor/regdisplaypanel.h

@@ -55,6 +55,15 @@ public:
 protected:
     IoBackend::WriteMode EditModeToWriteMode(RegLineEdit::EditMode mode);
 
+    enum
+    {
+        FieldBitsColumn = 0,
+        FieldNameColumn = 1,
+        FieldValueColumn = 2,
+        FieldMeaningColumn = 3,
+        FieldDescColumn = 4,
+    };
+
     IoBackend *m_io_backend;
     const SocRegRef& m_reg;
     bool m_allow_write;
@@ -69,9 +78,11 @@ protected:
     QLabel *m_desc;
     QWidget *m_viewport;
     QScrollArea *m_scroll;
+    bool m_ignore_cell_change;
 
 private slots:
     void OnRawRegValueReturnPressed();
+    void OnRegFieldValueChanged(int row, int col);
 };
 
 #endif /* REGDISPLAYPANEL_H */ 

utils/regtools/qeditor/regtab.cpp

@@ -5,6 +5,7 @@
 #include <QFileDialog>
 #include <QDebug>
 #include <QStyle>
+#include <QMessageBox>
 #include "backend.h"
 #include "analyser.h"
 #include "regdisplaypanel.h"
@@ -111,9 +112,11 @@ RegTab::RegTab(Backend *backend, QWidget *parent)
     m_readonly_check = new QCheckBox("Read-only");
     m_readonly_check->setCheckState(Qt::Checked);
     m_data_soc_label = new QLabel;
-    QPushButton *data_sel_reload = new QPushButton;
-    data_sel_reload->setIcon(QIcon::fromTheme("view-refresh"));
-    data_sel_reload->setToolTip("Reload data");
+    m_dump = new QPushButton("Dump", this);
+    m_dump->setIcon(QIcon::fromTheme("system-run"));
+    m_data_sel_reload = new QPushButton(this);
+    m_data_sel_reload->setIcon(QIcon::fromTheme("view-refresh"));
+    m_data_sel_reload->setToolTip("Reload data");
     data_sel_layout->addWidget(m_data_selector);
     data_sel_layout->addWidget(m_data_sel_edit, 1);
     data_sel_layout->addStretch(0);
@@ -123,7 +126,8 @@ RegTab::RegTab(Backend *backend, QWidget *parent)
 #endif
     data_sel_layout->addWidget(m_readonly_check);
     data_sel_layout->addWidget(m_data_soc_label);
-    data_sel_layout->addWidget(data_sel_reload);
+    data_sel_layout->addWidget(m_dump);
+    data_sel_layout->addWidget(m_data_sel_reload);
     data_sel_group->setLayout(data_sel_layout);
     m_data_soc_label->setFrameStyle(QFrame::StyledPanel | QFrame::Raised);
 
@@ -153,6 +157,7 @@ RegTab::RegTab(Backend *backend, QWidget *parent)
         this, SLOT(OnDevChanged(int)));
 #endif
     connect(m_readonly_check, SIGNAL(clicked(bool)), this, SLOT(OnReadOnlyClicked(bool)));
+    connect(m_dump, SIGNAL(clicked(bool)), this, SLOT(OnDumpRegs(bool)));
 
     OnSocListChanged();
     OnDataSelChanged(0);
@@ -205,6 +210,8 @@ void RegTab::OnDataSelChanged(int index)
         m_dev_selector->hide();
 #endif
         m_readonly_check->show();
+        m_data_sel_reload->show();
+        m_dump->hide();
         QFileDialog *fd = new QFileDialog(m_data_selector);
         fd->setFilter("Textual files (*.txt);;All files (*)");
         fd->setDirectory(Settings::Get()->value("loaddatadir", QDir::currentPath()).toString());
@@ -226,6 +233,8 @@ void RegTab::OnDataSelChanged(int index)
         m_data_sel_edit->hide();
         m_readonly_check->show();
         m_dev_selector->show();
+        m_data_sel_reload->hide();
+        m_dump->show();
         OnDevListChanged();
     }
 #endif
@@ -236,6 +245,8 @@ void RegTab::OnDataSelChanged(int index)
         m_dev_selector->hide();
 #endif
         m_readonly_check->hide();
+        m_data_sel_reload->hide();
+        m_dump->hide();
 
         delete m_io_backend;
         m_io_backend = m_backend->CreateDummyIoBackend();
@@ -363,7 +374,10 @@ void RegTab::OnDevChanged(int index)
         return;
     HWStubDevice *dev = reinterpret_cast< HWStubDevice* >(m_dev_selector->itemData(index).value< void* >());
     delete m_io_backend;
-    m_io_backend = m_backend->CreateHWStubIoBackend(dev);
+    /* NOTE: make a copy of the HWStubDevice device because the one in the list
+     * might get destroyed when clearing the list while the backend is still
+     * active: this would result in a double free when the backend is also destroyed */
+    m_io_backend = m_backend->CreateHWStubIoBackend(new HWStubDevice(dev));
     SetDataSocName(m_io_backend->GetSocName());
     OnDataSocActivated(m_io_backend->GetSocName());
     OnDataChanged();
@@ -435,3 +449,22 @@ void RegTab::OnReadOnlyClicked(bool checked)
     m_right_content->AllowWrite(!checked);
     UpdateSocFilename();
 }
+
+void RegTab::OnDumpRegs(bool c)
+{
+    Q_UNUSED(c);
+    QFileDialog *fd = new QFileDialog(this);
+    fd->setAcceptMode(QFileDialog::AcceptSave);
+    fd->setFilter("Textual files (*.txt);;All files (*)");
+    fd->setDirectory(Settings::Get()->value("loaddatadir", QDir::currentPath()).toString());
+    if(!fd->exec())
+        return;
+    QStringList filenames = fd->selectedFiles();
+    Settings::Get()->setValue("loaddatadir", fd->directory().absolutePath());
+    BackendHelper bh(m_io_backend, m_cur_soc);
+    if(!bh.DumpAllRegisters(filenames[0]))
+    {
+        QMessageBox::warning(this, "The register dump was not saved",
+            "There was an error when dumping the registers");
+    }
+}

utils/regtools/qeditor/regtab.h

@@ -80,6 +80,7 @@ protected:
     QCheckBox *m_readonly_check;
     QLabel *m_data_soc_label;
     QPushButton *m_data_sel_reload;
+    QPushButton *m_dump;
     QComboBox *m_data_selector;
     IoBackend *m_io_backend;
     QTabWidget *m_type_selector;
@@ -102,6 +103,7 @@ private slots:
     void OnAnalyserChanged(QListWidgetItem *current, QListWidgetItem *previous);
     void OnAnalyserClicked(QListWidgetItem *clicked);
     void OnReadOnlyClicked(bool);
+    void OnDumpRegs(bool);
 };
 
 #endif /* REGTAB_H */