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Input: sur40 - skip all blobs that are not touches 

The SUR40 labels all reported blobs as touch, token, or generic blob.
Previously, all blobs were reported as touch regardless of type, causing
lots of false positives. Present patch fixes this.

Signed-off-by: Martin Kaltenbrunner <modin@yuri.at>
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Florian Echtler 2017-07-10 10:40:28 -07:00 committed by Dmitry Torokhov
parent 335abaea7a
commit 4323418d62
1 changed files with 13 additions and 9 deletions
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22
drivers/input/touchscreen/sur40.c
View File

@ -296,20 +296,24 @@ static void sur40_close(struct input_polled_dev *polldev)
static void sur40_report_blob(struct sur40_blob *blob, struct input_dev *input)
{
int wide, major, minor;
int bb_size_x, bb_size_y, pos_x, pos_y, ctr_x, ctr_y, slotnum;
int bb_size_x = le16_to_cpu(blob->bb_size_x);
int bb_size_y = le16_to_cpu(blob->bb_size_y);
if (blob->type != SUR40_TOUCH)
return;
int pos_x = le16_to_cpu(blob->pos_x);
int pos_y = le16_to_cpu(blob->pos_y);
int ctr_x = le16_to_cpu(blob->ctr_x);
int ctr_y = le16_to_cpu(blob->ctr_y);
int slotnum = input_mt_get_slot_by_key(input, blob->blob_id);
slotnum = input_mt_get_slot_by_key(input, blob->blob_id);
if (slotnum < 0 || slotnum >= MAX_CONTACTS)
return;
bb_size_x = le16_to_cpu(blob->bb_size_x);
bb_size_y = le16_to_cpu(blob->bb_size_y);
pos_x = le16_to_cpu(blob->pos_x);
pos_y = le16_to_cpu(blob->pos_y);
ctr_x = le16_to_cpu(blob->ctr_x);
ctr_y = le16_to_cpu(blob->ctr_y);
input_mt_slot(input, slotnum);
input_mt_report_slot_state(input, MT_TOOL_FINGER, 1);
wide = (bb_size_x > bb_size_y);