aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/hid
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-multitouch.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 760c4a042e6a..76088f2cf598 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -122,6 +122,7 @@ struct mt_device {
int scantime_index; /* scantime field index in the report */
int scantime_val_index; /* scantime value index in the field */
int prev_scantime; /* scantime reported in the previous packet */
+ int left_button_state; /* left button state */
unsigned last_slot_field; /* the last field of a slot */
unsigned mt_report_id; /* the report ID of the multitouch device */
unsigned long initial_quirks; /* initial quirks state */
@@ -743,10 +744,16 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
*/
static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
{
+ __s32 cls = td->mtclass.name;
+
+ if (cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL)
+ input_event(input, EV_KEY, BTN_LEFT, td->left_button_state);
+
input_mt_sync_frame(input);
input_event(input, EV_MSC, MSC_TIMESTAMP, td->timestamp);
input_sync(input);
td->num_received = 0;
+ td->left_button_state = 0;
if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags))
set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
else
@@ -857,6 +864,19 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
!first_packet)
return;
+ /*
+ * For Win8 PTP touchpads we map both the clickpad click
+ * and any "external" left buttons to BTN_LEFT if a
+ * device claims to have both we need to report 1 for
+ * BTN_LEFT if either is pressed, so we or all values
+ * together and report the result in mt_sync_frame().
+ */
+ if ((cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL) &&
+ usage->type == EV_KEY && usage->code == BTN_LEFT) {
+ td->left_button_state |= value;
+ return;
+ }
+
if (usage->type)
input_event(input, usage->type, usage->code,
value);

Privacy Policy