--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python/ide/st-util.py	Wed Nov 27 08:06:42 2013 +0100
@@ -0,0 +1,385 @@
+#!/usr/bin/python
+
+import sys
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+import stlink, devices, stm32, usb
+from devices import Interface, Device
+from hexedit import HexEdit
+
+
+class InformationDialog(QDialog):
+   def __init__(self, parent):
+      super().__init__(parent)
+      self.setWindowTitle('Info')
+      fl = QFormLayout(self)
+      if parent.stl:
+         fl.addRow('ST link version:', QLabel(parent.stl.Version))
+         fl.addRow('Chip id:', QLabel('0x{0:X}'.format(parent.stl.ChipId)))
+         fl.addRow('Current mode:', QLabel(parent.stl.CurrentModeString))
+         fl.addRow('Status:', QLabel(parent.stl.StatusString))
+
+
+class RegisterModel(QAbstractTableModel):
+    def __init__(self):
+      super().__init__()
+      self.regCount = 15
+      self.device = None
+
+    def rowCount(self, parent):
+      if parent.isValid():
+         return 0
+      if self.device:
+         return 21 # TODO make variable
+      else:
+         return 0
+
+    def setDevice(self, dev):
+      self.device = dev
+      self.modelReset.emit()
+
+    def columnCount(self, parent):
+      if parent.isValid():
+         return 0
+      return 2
+
+    def data(self, index, role):
+      if index.isValid():
+         row, col = index.row(), index.column()
+         if role == Qt.DisplayRole:
+            if col == 0:
+                if row == 15:
+                    return 'PC'
+                elif row == 14:
+                    return 'LR'
+                elif row == 13:
+                    return 'SP'
+                else:
+                    return 'R{0}'.format(row)
+            elif col == 1:
+               v = self.device.iface.read_reg(row)
+               return '0x{0:X}'.format(v)
+
+    def setData(self, index, value, role):
+      if index.isValid():
+         row = index.row()
+         col = index.column()
+         if role == Qt.EditRole and col == 1:
+            value = int(value, 16)
+            self.device.iface.write_reg(row, value)
+            return True
+      return False
+
+    def flags(self, index):
+      if index.isValid():
+         row = index.row()
+         col = index.column()
+         if col == 1:
+            return super().flags(index) | Qt.ItemIsEditable
+      return super().flags(index)
+
+    def refresh(self):
+      if self.device:
+         fromIndex = self.index(0, 1)
+         toIndex = self.index(21, 1)
+         self.dataChanged.emit(fromIndex, toIndex)
+
+
+class RegisterView(QTableView):
+    def __init__(self):
+      super().__init__()
+      self.mdl = RegisterModel()
+      self.setModel(self.mdl)
+
+    def refresh(self):
+      if self.mdl.device:
+         self.setEnabled(not self.mdl.device.Running)
+      self.mdl.refresh()
+
+
+class MemoryView(QWidget):
+    BlockSize = 0x100
+    def __init__(self):
+      super().__init__()
+      l = QVBoxLayout(self)
+      l2 = QHBoxLayout()
+      l2.addWidget(QLabel('Address'))
+      self.addressLine = QLineEdit()
+      self.addressLine.setInputMask('Hhhhhhhh')
+      l2.addWidget(self.addressLine)
+      upButton = QPushButton('up')
+      l2.addWidget(upButton)
+      upButton.clicked.connect(self.doUp)
+      downButton = QPushButton('down')
+      downButton.clicked.connect(self.doDown)
+      l2.addWidget(downButton)
+      l.addLayout(l2)
+      self.device = None
+      self.hexEdit = HexEdit()
+      self.Address = 0x8000000
+      l.addWidget(self.hexEdit)
+      self.addressLine.returnPressed.connect(self.refresh)
+
+    def refresh(self):
+        address = self.Address
+        if self.device:
+            data = self.device.iface.read_mem32(address, self.BlockSize)
+        else:
+            data = bytearray(self.BlockSize)
+        self.hexEdit.bv.Data = data
+        self.hexEdit.bv.Offset = address
+
+    def getAddress(self):
+          txt = self.addressLine.text()
+          return int(txt, 16)
+
+    def doUp(self):
+        self.Address -= self.BlockSize
+
+    def doDown(self):
+        self.Address += self.BlockSize
+
+    def setAddress(self, address):
+        self.addressLine.setText('{0:08X}'.format(address))
+        self.refresh()
+    Address = property(getAddress, setAddress)
+    def setDevice(self, dev):
+      self.device = dev
+      self.Address = 0x8000000
+
+
+class DebugToolbar(QToolBar):
+   statusChange = pyqtSignal()
+   codePosition = pyqtSignal(int)
+   def __init__(self):
+      super().__init__()
+      self.device = None
+      # generate actions:
+      def genAction(name, callback):
+         a = QAction(name, self)
+         a.triggered.connect(callback)
+         self.addAction(a)
+         return a
+      self.stepAction = genAction('Step', self.doStep)
+      self.runAction = genAction('Run', self.doRun)
+      self.stopAction = genAction('Stop', self.doHalt)
+      self.resetAction = genAction('Reset', self.doReset)
+      self.enableTraceAction = genAction('Enable trace', self.doEnableTrace)
+      self.updateEnables()
+   def updateEnables(self):
+      if self.device:
+         self.resetAction.setEnabled(True)
+         self.enableTraceAction.setEnabled(True)
+         self.runAction.setEnabled(not self.device.Running)
+         self.stepAction.setEnabled(not self.device.Running)
+         self.stopAction.setEnabled(self.device.Running)
+         self.statusChange.emit()
+         if not self.device.Running:
+            PC = 15
+            v = self.device.iface.read_reg(PC)
+            self.codePosition.emit(v)
+      else:
+         self.resetAction.setEnabled(False)
+         self.enableTraceAction.setEnabled(False)
+         self.runAction.setEnabled(False)
+         self.stepAction.setEnabled(False)
+         self.stopAction.setEnabled(False)
+   def doStep(self):
+      self.device.iface.step()
+      self.updateEnables()
+   def doReset(self):
+      self.device.iface.reset()
+      self.updateEnables()
+   def doRun(self):
+      self.device.iface.run()
+      self.updateEnables()
+   def doHalt(self):
+      self.device.iface.halt()
+      self.updateEnables()
+   def doEnableTrace(self):
+      self.device.iface.traceEnable()
+      self.updateEnables()
+   def setDevice(self, dev):
+      self.device = dev
+      self.updateEnables()
+
+
+class FlashTool(QWidget):
+   def __init__(self):
+      super().__init__()
+      # TODO!
+
+
+class DeviceTreeModel(QAbstractItemModel):
+   def __init__(self):
+      super().__init__()
+      self.chipPixmap = QPixmap('icons/chip.png').scaled(32, 32)
+      self.hardwarePixmap = QPixmap('icons/hardware.png').scaled(32, 32)
+      self.refresh()
+   def refresh(self):
+      """ Check all usb interfaces for interfaces """
+      self.interfaces = devices.createInterfaces()
+      self.devices = []
+      self.modelReset.emit()
+   def addDevice(self, device):
+      if device.iface in [lambda d: d.iface for d in self.devices]:
+         print('device already open')
+         return
+      self.devices.append(device)
+      self.modelReset.emit()
+   def index(self, row, column, parent):
+      if parent.isValid():
+         ip = parent.internalPointer()
+         if isinstance(ip, Interface):
+            devs = [d for d in self.devices if d.iface is ip]
+            return self.createIndex(row, column, devs[row])
+      else:
+         iface = self.interfaces[row]
+         return self.createIndex(row, column, iface)
+      return idx
+   def parent(self, index):
+      if index.isValid():
+         ip = index.internalPointer()
+         if isinstance(ip, Interface):
+            return QModelIndex()
+         elif isinstance(ip, Device):
+            iface = ip.iface
+            row = self.interfaces.index(iface)
+            return self.createIndex(row, 0, iface)
+         return QModelIndex()
+   def rowCount(self, parent):
+      if parent.isValid():
+         # non-root level:
+         ip = parent.internalPointer()
+         if isinstance(ip, Interface):
+            devs = [d for d in self.devices if d.iface is ip]
+            return len(devs)
+      else:
+         # root level:
+         return len(self.interfaces)
+      return 0
+   def columnCount(self, parent):
+      return 1
+   def data(self, index, role):
+      if index.isValid():
+         ip = index.internalPointer()
+         if role == Qt.DisplayRole:
+            return str(ip)
+         elif role == Qt.DecorationRole:
+            if isinstance(ip, Interface):
+               return self.hardwarePixmap
+            if isinstance(ip, Device):
+               return self.chipPixmap
+
+class DeviceExplorer(QTreeView):
+   """ Lists all interfaces plugged in and allows selection """
+   deviceSelected = pyqtSignal(Device)
+   def __init__(self):
+      super().__init__()
+      self.mdl = DeviceTreeModel()
+      self.setModel(self.mdl)
+      self.activated.connect(self.openItem)
+      self.header().close()
+      self.customContextMenuRequested.connect(self.openMenu)
+      self.setContextMenuPolicy(Qt.CustomContextMenu)
+   def openItem(self, idx):
+      if idx.isValid():
+         ip = idx.internalPointer()
+         if isinstance(ip, Interface):
+            if not ip.IsOpen:
+               try:
+                  ip.open()
+               except usb.UsbError as e:
+                  QMessageBox.critical(self, "Error", 'Error opening interface: "{0}"'.format(e))
+               else:
+                  # Try to get a device:
+                  self.mdl.addDevice(ip.createDevice())
+         if isinstance(ip, Device):
+            self.deviceSelected.emit(ip)
+   def openMenu(self, pt):
+      idx = self.indexAt(pt)
+      menu = QMenu()
+      menu.addAction('Refresh', self.mdl.refresh)
+      if idx.isValid():
+         ip = idx.internalPointer()
+         if isinstance(ip, Interface):
+            if ip.IsOpen:
+               def closeInterface():
+                  self.mdl.closeInterface(ip)
+               menu.addAction('Close', closeInterface)
+            else:
+               def openInterface():
+                  ip.open()
+                  # Try to get a device:
+                  self.mdl.addDevice(ip.createDevice())
+               menu.addAction('Open', openInterface)
+         elif isinstance(ip, Device):
+            def selectDevice():
+               self.deviceSelected.emit(ip)
+            menu.addAction('Select', selectDevice)
+      menu.exec(self.mapToGlobal(pt))
+
+
+class StUtil(QMainWindow):
+   connected = pyqtSignal(bool)
+   def __init__(self):
+      super().__init__()
+      self.stl = None
+      def buildAction(name, callback, shortcut=None):
+         a = QAction(name, self)
+         a.triggered.connect(callback)
+         if shortcut:
+            a.setShortcut(shortcut)
+         return a
+      mb = self.menuBar()
+      fileMenu = mb.addMenu("File")
+      self.connectAction = buildAction('Connect', self.connect)
+      fileMenu.addAction(self.connectAction)
+      self.disconnectAction = buildAction('Disconnect', self.disconnect)
+      fileMenu.addAction(self.disconnectAction)
+
+      self.miscMenu = mb.addMenu("Misc")
+      infoAction = buildAction('Info', self.info)
+      self.miscMenu.addAction(infoAction)
+
+      sb = self.statusBar()
+
+      devexplr = DeviceExplorer()
+      self.setCentralWidget(devexplr)
+      devexplr.deviceSelected.connect(self.handleDeviceSelected)
+
+      self.connected.connect(self.handleConnectedChange)
+      self.connected.emit(False)
+   def handleDeviceSelected(self, dev):
+      self.dev = dev
+      self.handleConnectedChange(True)
+   def handleConnectedChange(self, state):
+      self.miscMenu.setEnabled(state)
+      self.connectAction.setEnabled(not state)
+      self.disconnectAction.setEnabled(state)
+      msg = 'Connected!' if state else 'Disconnected!'
+      self.statusBar().showMessage(msg)
+   def info(self):
+      infoDialog = InformationDialog(self)
+      infoDialog.exec()
+   def connect(self):
+      try:
+         self.stl = stlink.STLink()
+         self.stl.open()
+      except (stlink.STLinkException, usb.UsbError) as e:
+         QMessageBox.warning(self, "Error", str(e))
+         self.stl = None
+      if self.stl:
+         self.connected.emit(True)
+   def disconnect(self):
+      if self.stl:
+         self.stl.close()
+         self.connected.emit(False)
+      self.stl = None
+
+if __name__ == '__main__':
+   app = QApplication(sys.argv)
+   stu = StUtil()
+   stu.show()
+   app.exec()
+