1 files changed, 112 insertions, 0 deletions
diff --git a/net/can/can_host.c b/net/can/can_host.c
new file mode 100644
index 0000000000..c3d26521cd
--- /dev/null
+++ b/net/can/can_host.c
@@ -0,0 +1,112 @@
+/*
+ * CAN generic CAN host connection support
+ *
+ * Copyright (c) 2013-2014 Jin Yang
+ * Copyright (c) 2014-2018 Pavel Pisa
+ *
+ * Initial development supported by Google GSoC 2013 from RTEMS project slot
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "qemu/osdep.h"
+#include "chardev/char.h"
+#include "qemu/sockets.h"
+#include "qapi/error.h"
+#include "qom/object_interfaces.h"
+#include "net/can_emu.h"
+#include "net/can_host.h"
+
+struct CanBusState {
+    Object object;
+
+    QTAILQ_HEAD(, CanBusClientState) clients;
+};
+
+static void can_host_disconnect(CanHostState *ch)
+{
+    CanHostClass *chc = CAN_HOST_GET_CLASS(ch);
+
+    can_bus_remove_client(&ch->bus_client);
+    chc->disconnect(ch);
+}
+
+static void can_host_connect(CanHostState *ch, Error **errp)
+{
+    CanHostClass *chc = CAN_HOST_GET_CLASS(ch);
+    Error *local_err = NULL;
+
+    chc->connect(ch, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    can_bus_insert_client(ch->bus, &ch->bus_client);
+}
+
+static void can_host_unparent(Object *obj)
+{
+    can_host_disconnect(CAN_HOST(obj));
+}
+
+static void can_host_complete(UserCreatable *uc, Error **errp)
+{
+    can_host_connect(CAN_HOST(uc), errp);
+}
+
+static void can_host_instance_init(Object *obj)
+{
+    CanHostState *ch = CAN_HOST(obj);
+
+    object_property_add_link(obj, "canbus", TYPE_CAN_BUS,
+                             (Object **)&ch->bus,
+                             object_property_allow_set_link,
+                             OBJ_PROP_LINK_UNREF_ON_RELEASE,
+                             &error_abort);
+}
+
+static void can_host_class_init(ObjectClass *klass,
+                                void *class_data G_GNUC_UNUSED)
+{
+    UserCreatableClass *uc_klass = USER_CREATABLE_CLASS(klass);
+
+    klass->unparent = can_host_unparent;
+    uc_klass->complete = can_host_complete;
+}
+
+static const TypeInfo can_host_info = {
+    .parent = TYPE_OBJECT,
+    .name = TYPE_CAN_HOST,
+    .instance_size = sizeof(CanHostState),
+    .class_size = sizeof(CanHostClass),
+    .abstract = true,
+    .instance_init = can_host_instance_init,
+    .class_init = can_host_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_USER_CREATABLE },
+        { }
+    }
+};
+
+static void can_host_register_types(void)
+{
+    type_register_static(&can_host_info);
+}
+
+type_init(can_host_register_types);