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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-16 09:04:54 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-16 09:04:54 +0200
commit83cf9cd6d50ed4f7e6ae265e80e38b235c792f5f (patch)
tree6016c386c321cd6a3e8575e01ed9f10834fc5081 /drivers/input/input-mt.c
parent34bcfdac8c92cc7971254ba5856afd12047c50b2 (diff)
parent9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff)
Merge 4.18-rc5 into char-misc-next
We want the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/input-mt.c')
-rw-r--r--drivers/input/input-mt.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index cf30523c6ef6..6c7326c93721 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -131,8 +131,10 @@ EXPORT_SYMBOL(input_mt_destroy_slots);
* inactive, or if the tool type is changed, a new tracking id is
* assigned to the slot. The tool type is only reported if the
* corresponding absbit field is set.
+ *
+ * Returns true if contact is active.
*/
-void input_mt_report_slot_state(struct input_dev *dev,
+bool input_mt_report_slot_state(struct input_dev *dev,
unsigned int tool_type, bool active)
{
struct input_mt *mt = dev->mt;
@@ -140,22 +142,24 @@ void input_mt_report_slot_state(struct input_dev *dev,
int id;
if (!mt)
- return;
+ return false;
slot = &mt->slots[mt->slot];
slot->frame = mt->frame;
if (!active) {
input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
- return;
+ return false;
}
id = input_mt_get_value(slot, ABS_MT_TRACKING_ID);
- if (id < 0 || input_mt_get_value(slot, ABS_MT_TOOL_TYPE) != tool_type)
+ if (id < 0)
id = input_mt_new_trkid(mt);
input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, id);
input_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, tool_type);
+
+ return true;
}
EXPORT_SYMBOL(input_mt_report_slot_state);