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ANDROID: virtio: virtio_input: Set the amount of multitouch slots in virtio input

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Virtio input was missing the the amount of multitouch
slots and kernel was filtering out ABS_MT_SLOT events
for a screen is touched in more than one place.

Bug: 143488374
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I617099435af311e6b0ee127b76eafe13834ea8f8
This commit is contained in:
Roman Kiryanov
2019-10-28 14:34:48 -07:00
committed by Alistair Delva
parent 3a6402a082
commit af5cf146e4
1 changed files with 7 additions and 0 deletions
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7
drivers/virtio/virtio_input.c
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@@ -3,6 +3,7 @@
#include <linux/virtio.h>
#include <linux/virtio_config.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <uapi/linux/virtio_ids.h>
#include <uapi/linux/virtio_input.h>
@@ -164,6 +165,12 @@ static void virtinput_cfg_abs(struct virtio_input *vi, int abs)
virtio_cread(vi->vdev, struct virtio_input_config, u.abs.flat, &fl);
input_set_abs_params(vi->idev, abs, mi, ma, fu, fl);
input_abs_set_res(vi->idev, abs, re);
if (abs == ABS_MT_TRACKING_ID)
input_mt_init_slots(vi->idev,
ma, /* input max finger */
INPUT_MT_DIRECT
| INPUT_MT_DROP_UNUSED
| INPUT_MT_TRACK);
}
static int virtinput_init_vqs(struct virtio_input *vi)