adb: QOM'ify Apple Desktop Bus

It was not a qbus before, turn it into a first-class bus and initialize
it properly from CUDA. Leave it a global variable as long as devices are
not QOM'ified yet.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

hw/adb.c

@@ -126,6 +126,12 @@ static ADBDevice *adb_register_device(ADBBusState *s, int devaddr,
     return d;
 }
 
+static const TypeInfo adb_bus_type_info = {
+    .name = TYPE_ADB_BUS,
+    .parent = TYPE_BUS,
+    .instance_size = sizeof(ADBBusState),
+};
+
 /***************************************************************/
 /* Keyboard ADB device */
 
@@ -453,3 +459,11 @@ void adb_mouse_init(ADBBusState *bus)
     qemu_add_mouse_event_handler(adb_mouse_event, d, 0, "QEMU ADB Mouse");
     vmstate_register(NULL, -1, &vmstate_adb_mouse, s);
 }
+
+
+static void adb_register_types(void)
+{
+    type_register_static(&adb_bus_type_info);
+}
+
+type_init(adb_register_types)

hw/adb.h

@@ -26,10 +26,13 @@
 #if !defined(__ADB_H__)
 #define __ADB_H__
 
+#include "qdev.h"
+
 #define MAX_ADB_DEVICES 16
 
 #define ADB_MAX_OUT_LEN 16
 
+typedef struct ADBBusState ADBBusState;
 typedef struct ADBDevice ADBDevice;
 
 /* buf = NULL means polling */
@@ -38,7 +41,7 @@ typedef int ADBDeviceRequest(ADBDevice *d, uint8_t *buf_out,
 typedef int ADBDeviceReset(ADBDevice *d);
 
 struct ADBDevice {
-    struct ADBBusState *bus;
+    ADBBusState *bus;
     int devaddr;
     int handler;
     ADBDeviceRequest *devreq;
@@ -46,11 +49,18 @@ struct ADBDevice {
     void *opaque;
 };
 
-typedef struct ADBBusState {
+#define TYPE_ADB_BUS "apple-desktop-bus"
+#define ADB_BUS(obj) OBJECT_CHECK(ADBBusState, (obj), TYPE_ADB_BUS)
+
+struct ADBBusState {
+    /*< private >*/
+    BusState parent_obj;
+    /*< public >*/
+
     ADBDevice devices[MAX_ADB_DEVICES];
     int nb_devices;
     int poll_index;
-} ADBBusState;
+};
 
 int adb_request(ADBBusState *s, uint8_t *buf_out,
                 const uint8_t *buf, int len);

hw/cuda.c

@@ -712,6 +712,9 @@ static void cuda_initfn(Object *obj)
     for (i = 0; i < ARRAY_SIZE(s->timers); i++) {
         s->timers[i].index = i;
     }
+
+    qbus_create_inplace((BusState *)&adb_bus, TYPE_ADB_BUS, DEVICE(obj),
+                        "adb.0");
 }
 
 static void cuda_class_init(ObjectClass *oc, void *data)