This becomes an abstract QOM type which will be a parent type for separate
keyboard and mouse port types.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Acked-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220712215251.7944-17-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/input/lasips2.c         |  8 ++++++++
 include/hw/input/lasips2.h | 14 ++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/hw/input/lasips2.c b/hw/input/lasips2.c
index b539c4de7a..56bfd759af 100644
--- a/hw/input/lasips2.c
+++ b/hw/input/lasips2.c
@@ -311,9 +311,17 @@ static const TypeInfo lasips2_info = {
     .class_init    = lasips2_class_init,
 };
 
+static const TypeInfo lasips2_port_info = {
+    .name          = TYPE_LASIPS2_PORT,
+    .parent        = TYPE_DEVICE,
+    .instance_size = sizeof(LASIPS2Port),
+    .abstract      = true,
+};
+
 static void lasips2_register_types(void)
 {
     type_register_static(&lasips2_info);
+    type_register_static(&lasips2_port_info);
 }
 
 type_init(lasips2_register_types)
diff --git a/include/hw/input/lasips2.h b/include/hw/input/lasips2.h
index 9746b7a132..f4514081fe 100644
--- a/include/hw/input/lasips2.h
+++ b/include/hw/input/lasips2.h
@@ -25,9 +25,15 @@
 #include "hw/sysbus.h"
 #include "hw/input/ps2.h"
 
-struct LASIPS2State;
-typedef struct LASIPS2Port {
-    struct LASIPS2State *parent;
+#define TYPE_LASIPS2_PORT "lasips2-port"
+OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2Port, LASIPS2_PORT)
+
+typedef struct LASIPS2State LASIPS2State;
+
+struct LASIPS2Port {
+    DeviceState parent_obj;
+
+    LASIPS2State *parent;
     MemoryRegion reg;
     PS2State *ps2dev;
     uint8_t id;
@@ -35,7 +41,7 @@ typedef struct LASIPS2Port {
     uint8_t buf;
     bool loopback_rbne;
     bool irq;
-} LASIPS2Port;
+};
 
 struct LASIPS2State {
     SysBusDevice parent_obj;
-- 
2.30.2