diff options
Diffstat (limited to 'hw/input/hid.c')
| -rw-r--r-- | hw/input/hid.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/hw/input/hid.c b/hw/input/hid.c index 148c003bb2..6841cb8649 100644 --- a/hw/input/hid.c +++ b/hw/input/hid.c @@ -41,7 +41,7 @@ static const uint8_t hid_usage_keys[0x100] = { 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, - 0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, + 0xe2, 0x2c, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, 0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, @@ -514,6 +514,27 @@ static int hid_post_load(void *opaque, int version_id) HIDState *s = opaque; hid_set_next_idle(s); + + if (s->n == QUEUE_LENGTH && (s->kind == HID_TABLET || + s->kind == HID_MOUSE)) { + /* + * Handle ptr device migration from old qemu with full queue. + * + * Throw away everything but the last event, so we propagate + * at least the current button state to the guest. Also keep + * current position for the tablet, signal "no motion" for the + * mouse. + */ + HIDPointerEvent evt; + evt = s->ptr.queue[(s->head+s->n) & QUEUE_MASK]; + if (s->kind == HID_MOUSE) { + evt.xdx = 0; + evt.ydy = 0; + } + s->ptr.queue[0] = evt; + s->head = 0; + s->n = 1; + } return 0; } |