a (probably incorrect) interpretation of writing firmware

protocol/enttec/dmx-usb-pro/widget.cpp

@@ -253,6 +253,43 @@ void Widget::setTxRate(uint8_t rate)
 }
 
 
+/**
+ * @brief Widget::writeFirmware
+ * @param data
+ * @param size
+ * @return
+ */
+bool Widget::writeFirmware(const uint8_t *data, const size_t size)
+{
+  /**
+   * While the API documents the message formats, there is little discussion of the
+   * implimentation for updating firmware.  As such, do nothing and return false.
+   */
+  return false;
+
+  // reboot the device into the fw loader
+  rebootBootloader();
+
+  auto msg = std::make_shared<Pro::MsgProgramFlashPageRequest>();
+  std::future<bool> ftr;
+  bool success;
+  for (uint i = 0; i < size / sizeof(msg->page);)
+  {
+    {
+      std::scoped_lock lock(mtx_metadata_);
+      reply_firmwarePage_ = std::promise<bool>(); // expect a reply to this message
+      ftr = reply_firmwarePage_.get_future();
+    }
+    std::copy(data + (i*sizeof(msg->page)), data + ((i+1)*sizeof(msg->page)), msg->page);
+    sendMessage(msg);
+    success = ftr.get();
+    if (success)
+      i++;                                  // page write was successful, do the next.
+  }
+  return success;
+}
+
+
 /**
  * @brief Widget::routeRxMessage
  * @param msg
@@ -528,7 +565,7 @@ void Widget::rxMsgProgramFlashPageRequest(std::shared_ptr<Pro::MsgProgramFlashPa
  */
 void Widget::rxMsgProgramFlashPageReply(std::shared_ptr<Pro::MsgProgramFlashPageReply> msg)
 {
-  (void)msg;
+  reply_firmwarePage_.set_value(msg->success);
 }
 
 

protocol/enttec/dmx-usb-pro/widget.h

@@ -72,6 +72,7 @@ public:
   uint8_t txRate() const;
   void setTxRate(uint8_t);
 
+  bool writeFirmware(const uint8_t *, const size_t);
 
 protected:
   void routeRxMessage(std::shared_ptr<Pro::MessageData>);
@@ -124,6 +125,7 @@ private:
 
   mutable std::mutex mtx_metadata_;
   std::shared_ptr<void> token_data_changed_;
+  std::promise<bool> reply_firmwarePage_;
   std::promise<bool> reply_parameters_;
   std::promise<bool> reply_serialNumber_;
 };