Add reset mechanism to logid::Device

src/logid/Device.cpp

@@ -21,6 +21,7 @@
 #include "Device.h"
 #include "features/SmartShift.h"
 #include "features/RemapButton.h"
+#include "backend/hidpp20/features/Reset.h"
 
 using namespace logid;
 using namespace logid::backend;
@@ -49,6 +50,9 @@ void Device::_init()
     _addFeature<features::SmartShift>("smartshift");
     _addFeature<features::RemapButton>("remapbutton");
 
+    _makeResetMechanism();
+    reset();
+
     for(auto& feature: _features) {
         feature.second->configure();
         feature.second->listen();
@@ -76,10 +80,22 @@ void Device::wakeup()
 {
     logPrintf(INFO, "%s:%d woke up.", _path.c_str(), _index);
     std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+    reset();
+
     for(auto& feature: _features)
         feature.second->configure();
 }
 
+void Device::reset()
+{
+    if(_reset_mechanism)
+        (*_reset_mechanism)();
+    else
+        logPrintf(DEBUG, "%s:%d tried to reset, but no reset mechanism was "
+                         "available.", _path.c_str(), _index);
+}
+
 DeviceConfig& Device::config()
 {
     return _config;
@@ -90,6 +106,17 @@ hidpp20::Device& Device::hidpp20()
     return _hidpp20;
 }
 
+void Device::_makeResetMechanism()
+{
+    try {
+        hidpp20::Reset reset(&_hidpp20);
+        _reset_mechanism = std::make_unique<std::function<void()>>(
+                [dev=&this->_hidpp20]{ hidpp20::Reset(dev).reset(); });
+    } catch(hidpp20::UnsupportedFeature& e) {
+        // Reset unsupported, ignore.
+    }
+}
+
 DeviceConfig::DeviceConfig(const std::shared_ptr<Configuration>& config, Device*
     device) : _device (device), _config (config)
 {

src/logid/Device.h

@@ -62,6 +62,8 @@ namespace logid
         void wakeup();
         void sleep();
 
+        void reset();
+
         template<typename T>
         std::shared_ptr<T> getFeature(std::string name) {
             auto it = _features.find(name);
@@ -96,6 +98,9 @@ namespace logid
         std::map<std::string, std::shared_ptr<features::DeviceFeature>>
             _features;
         DeviceConfig _config;
+
+        void _makeResetMechanism();
+        std::unique_ptr<std::function<void()>> _reset_mechanism;
     };
 }