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-rw-r--r--ui/input-linux.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/ui/input-linux.c b/ui/input-linux.c
index dc0613ca1f..49d52a69cc 100644
--- a/ui/input-linux.c
+++ b/ui/input-linux.c
@@ -169,6 +169,10 @@ struct InputLinux {
     bool        has_abs_x;
     int         num_keys;
     int         num_btns;
+    int         abs_x_min;
+    int         abs_x_max;
+    int         abs_y_min;
+    int         abs_y_max;
     struct input_event event;
     int         read_offset;
 
@@ -314,6 +318,18 @@ static void input_linux_handle_mouse(InputLinux *il, struct input_event *event)
             break;
         }
         break;
+    case EV_ABS:
+        switch (event->code) {
+        case ABS_X:
+            qemu_input_queue_abs(NULL, INPUT_AXIS_X, event->value,
+                                 il->abs_x_min, il->abs_x_max);
+            break;
+        case ABS_Y:
+            qemu_input_queue_abs(NULL, INPUT_AXIS_Y, event->value,
+                                 il->abs_y_min, il->abs_y_max);
+            break;
+        }
+        break;
     case EV_SYN:
         qemu_input_event_sync();
         if (il->wheel != 0) {
@@ -351,7 +367,7 @@ static void input_linux_event(void *opaque)
         if (il->num_keys) {
             input_linux_handle_keyboard(il, &il->event);
         }
-        if (il->has_rel_x && il->num_btns) {
+        if ((il->has_rel_x || il->has_abs_x) && il->num_btns) {
             input_linux_handle_mouse(il, &il->event);
         }
     }
@@ -364,6 +380,7 @@ static void input_linux_complete(UserCreatable *uc, Error **errp)
     uint8_t keymap[KEY_CNT / 8], keystate[KEY_CNT / 8];
     unsigned int i;
     int rc, ver;
+    struct input_absinfo absinfo;
 
     if (!il->evdev) {
         error_setg(errp, "no input device specified");
@@ -402,6 +419,12 @@ static void input_linux_complete(UserCreatable *uc, Error **errp)
         rc = ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
         if (absmap & (1 << ABS_X)) {
             il->has_abs_x = true;
+            rc = ioctl(il->fd, EVIOCGABS(ABS_X), &absinfo);
+            il->abs_x_min = absinfo.minimum;
+            il->abs_x_max = absinfo.maximum;
+            rc = ioctl(il->fd, EVIOCGABS(ABS_Y), &absinfo);
+            il->abs_y_min = absinfo.minimum;
+            il->abs_y_max = absinfo.maximum;
         }
     }