Add QCanBusDevice::resetController() for CAN controller reset

Currently missing:

* VectorCAN: no information in the documentation found
* PassthroughCAN: no documentation

[ChangeLog][QCanBus][QCanBusDevice] Added the function
QCanBusDevice::resetController() to reset a CAN controller
from bus off state, as far as supported by the various
plugins.

Fixes: QTBUG-54943
Change-Id: Ic098054b012726c0c69970c0ae84f434c2b3964a
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>

2 files changed, 9 insertions, 0 deletions

diff --git a/src/plugins/canbus/socketcan/socketcanbackend.cpp b/src/plugins/canbus/socketcan/socketcanbackend.cpp
index cac1db5..9e99a57 100644
--- a/src/plugins/canbus/socketcan/socketcanbackend.cpp
+++ b/src/plugins/canbus/socketcan/socketcanbackend.cpp
@@ -194,6 +194,9 @@ SocketCanBackend::SocketCanBackend(const QString &name) :
     }
 
     resetConfigurations();
+
+    std::function<void()> f = std::bind(&SocketCanBackend::resetController, this);
+    setResetControllerFunction(f);
 }
 
 SocketCanBackend::~SocketCanBackend()
@@ -750,4 +753,9 @@ void SocketCanBackend::readSocket()
     enqueueReceivedFrames(newFrames);
 }
 
+void SocketCanBackend::resetController()
+{
+    libSocketCan->restart(canSocketName);
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/canbus/socketcan/socketcanbackend.h b/src/plugins/canbus/socketcan/socketcanbackend.h
index 1392251..561d4ee 100644
--- a/src/plugins/canbus/socketcan/socketcanbackend.h
+++ b/src/plugins/canbus/socketcan/socketcanbackend.h
@@ -83,6 +83,7 @@ private:
     void resetConfigurations();
     bool connectSocket();
     bool applyConfigurationParameter(int key, const QVariant &value);
+    void resetController();
 
     canfd_frame m_frame;
     sockaddr_can m_address;