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Diffstat (limited to 'hw/input/adb-mouse.c')
-rw-r--r--hw/input/adb-mouse.c41
1 files changed, 22 insertions, 19 deletions
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;
         }