4 files changed, 46 insertions, 33 deletions

diff --git a/hw/input/adb-kbd.c b/hw/input/adb-kbd.c
index 50b62712c8..b026e9d49f 100644
--- a/hw/input/adb-kbd.c
+++ b/hw/input/adb-kbd.c
@@ -261,18 +261,21 @@ static int adb_kbd_request(ADBDevice *d, uint8_t *obuf,
                 trace_adb_kbd_request_change_addr(d->devaddr);
                 break;
             default:
-                d->devaddr = buf[1] & 0xf;
-                /* we support handlers:
-                 * 1: Apple Standard Keyboard
-                 * 2: Apple Extended Keyboard (LShift = RShift)
-                 * 3: Apple Extended Keyboard (LShift != RShift)
-                 */
-                if (buf[2] == 1 || buf[2] == 2 || buf[2] == 3) {
-                    d->handler = buf[2];
+                if (!d->disable_direct_reg3_writes) {
+                    d->devaddr = buf[1] & 0xf;
+
+                    /* we support handlers:
+                     * 1: Apple Standard Keyboard
+                     * 2: Apple Extended Keyboard (LShift = RShift)
+                     * 3: Apple Extended Keyboard (LShift != RShift)
+                     */
+                    if (buf[2] == 1 || buf[2] == 2 || buf[2] == 3) {
+                        d->handler = buf[2];
+                    }
+
+                    trace_adb_kbd_request_change_addr_and_handler(d->devaddr,
+                                                                  d->handler);
                 }
-
-                trace_adb_kbd_request_change_addr_and_handler(d->devaddr,
-                                                              d->handler);
                 break;
             }
         }
@@ -290,8 +293,8 @@ static int adb_kbd_request(ADBDevice *d, uint8_t *obuf,
             olen = 2;
             break;
         case 3:
-            obuf[0] = d->handler;
-            obuf[1] = d->devaddr;
+            obuf[0] = d->devaddr;
+            obuf[1] = d->handler;
             olen = 2;
             break;
         }
diff --git a/hw/input/adb-mouse.c b/hw/input/adb-mouse.c
index 3ba6027d33..83833b0035 100644
--- a/hw/input/adb-mouse.c
+++ b/hw/input/adb-mouse.c
@@ -142,24 +142,27 @@ static int adb_mouse_request(ADBDevice *d, uint8_t *obuf,
                 trace_adb_mouse_request_change_addr(d->devaddr);
                 break;
             default:
-                d->devaddr = buf[1] & 0xf;
-                /* we support handlers:
-                 * 0x01: Classic Apple Mouse Protocol / 100 cpi operations
-                 * 0x02: Classic Apple Mouse Protocol / 200 cpi operations
-                 * we don't support handlers (at least):
-                 * 0x03: Mouse systems A3 trackball
-                 * 0x04: Extended Apple Mouse Protocol
-                 * 0x2f: Microspeed mouse
-                 * 0x42: Macally
-                 * 0x5f: Microspeed mouse
-                 * 0x66: Microspeed mouse
-                 */
-                if (buf[2] == 1 || buf[2] == 2) {
-                    d->handler = buf[2];
+                if (!d->disable_direct_reg3_writes) {
+                    d->devaddr = buf[1] & 0xf;
+
+                    /* we support handlers:
+                     * 0x01: Classic Apple Mouse Protocol / 100 cpi operations
+                     * 0x02: Classic Apple Mouse Protocol / 200 cpi operations
+                     * we don't support handlers (at least):
+                     * 0x03: Mouse systems A3 trackball
+                     * 0x04: Extended Apple Mouse Protocol
+                     * 0x2f: Microspeed mouse
+                     * 0x42: Macally
+                     * 0x5f: Microspeed mouse
+                     * 0x66: Microspeed mouse
+                     */
+                    if (buf[2] == 1 || buf[2] == 2) {
+                        d->handler = buf[2];
+                    }
+
+                    trace_adb_mouse_request_change_addr_and_handler(
+                        d->devaddr, d->handler);
                 }
-
-                trace_adb_mouse_request_change_addr_and_handler(d->devaddr,
-                                                                d->handler);
                 break;
             }
         }
@@ -172,8 +175,8 @@ static int adb_mouse_request(ADBDevice *d, uint8_t *obuf,
         case 1:
             break;
         case 3:
-            obuf[0] = d->handler;
-            obuf[1] = d->devaddr;
+            obuf[0] = d->devaddr;
+            obuf[1] = d->handler;
             olen = 2;
             break;
         }
diff --git a/hw/input/adb.c b/hw/input/adb.c
index 23ae6f0d75..bbb40aeef1 100644
--- a/hw/input/adb.c
+++ b/hw/input/adb.c
@@ -113,11 +113,18 @@ static void adb_device_realizefn(DeviceState *dev, Error **errp)
     bus->devices[bus->nb_devices++] = d;
 }
 
+static Property adb_device_properties[] = {
+    DEFINE_PROP_BOOL("disable-direct-reg3-writes", ADBDevice,
+                     disable_direct_reg3_writes, false),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void adb_device_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
 
     dc->realize = adb_device_realizefn;
+    dc->props = adb_device_properties;
     dc->bus_type = TYPE_ADB_BUS;
 }
 
diff --git a/hw/input/ps2.c b/hw/input/ps2.c
index eeec6180d0..fdfcadf9a1 100644
--- a/hw/input/ps2.c
+++ b/hw/input/ps2.c
@@ -927,7 +927,7 @@ static void ps2_common_post_load(PS2State *s)
 
     /* reset rptr/wptr/count */
     q->rptr = 0;
-    q->wptr = size;
+    q->wptr = (size == PS2_QUEUE_SIZE) ? 0 : size;
     q->count = size;
     s->update_irq(s->update_arg, q->count != 0);
 }