From d6b216d51ea204c424eecf9d12c159c7f81add2d Mon Sep 17 00:00:00 2001
From: Nav <nav@navnav.me>
Date: Sun, 26 Nov 2023 00:41:45 +0000
Subject: [PATCH] Send "end process" command to detach from target, upon
 deactivaition of WCH-Link debug tools

---
 .../WchLink/Commands/Control/DetachTarget.hpp | 20 +++++++++++++++++++
 .../Protocols/WchLink/WchLinkInterface.cpp    |  7 ++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Control/DetachTarget.hpp

diff --git a/src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Control/DetachTarget.hpp b/src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Control/DetachTarget.hpp
new file mode 100644
index 00000000..246198e6
--- /dev/null
+++ b/src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Control/DetachTarget.hpp
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <cstdint>
+
+#include "src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Command.hpp"
+
+namespace DebugToolDrivers::Wch::Protocols::WchLink::Commands::Control
+{
+    class DetachTarget: public Command<std::array<unsigned char, 1>>
+    {
+    public:
+        DetachTarget()
+            : Command(0x0d)
+        {
+            this->payload = {
+                0xff
+            };
+        }
+    };
+}
diff --git a/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp b/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
index 0dfff372..59495440 100644
--- a/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
+++ b/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
@@ -4,6 +4,7 @@
 
 #include "Commands/Control/GetDeviceInfo.hpp"
 #include "Commands/Control/AttachTarget.hpp"
+#include "Commands/Control/DetachTarget.hpp"
 #include "Commands/SetClockSpeed.hpp"
 #include "Commands/DebugModuleInterfaceOperation.hpp"
 
@@ -63,7 +64,11 @@ namespace DebugToolDrivers::Wch::Protocols::WchLink
     }
 
     void WchLinkInterface::deactivate() {
-        // TODO: implement this
+        const auto response = this->sendCommandAndWaitForResponse(Commands::Control::DetachTarget());
+
+        if (response.payload.size() != 1) {
+            throw Exceptions::DeviceCommunicationFailure("Unexpected response payload size for DetachTarget command");
+        }
     }
 
     std::string WchLinkInterface::getDeviceId() {