When there are 2 fingers on the pad we don't know which one is which, so
use input_mt_assign_slots to make sure the right set of coordinates ends
up in the right slot.
Besides ensuring things end up in the right slot, this also results in a nice
cleanup, since sync_frame also handles non mt position and btn_touch reporting.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/input/mouse/alps.c | 52 ++++++++++++++--------------------------------
1 file changed, 16 insertions(+), 36 deletions(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 772e4b0..9bebeb4 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -419,25 +419,26 @@ static int alps_process_bitmap(struct alps_data *priv,
return fingers;
}
-static void alps_set_slot(struct input_dev *dev, int slot, bool active,
- int x, int y)
+static void alps_set_slot(struct input_dev *dev, int slot, int x, int y)
{
input_mt_slot(dev, slot);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
- if (active) {
- input_report_abs(dev, ABS_MT_POSITION_X, x);
- input_report_abs(dev, ABS_MT_POSITION_Y, y);
- }
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+ input_report_abs(dev, ABS_MT_POSITION_X, x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, y);
}
-static void alps_report_semi_mt_data(struct psmouse *psmouse, int num_fingers)
+static void alps_report_mt_data(struct psmouse *psmouse, int n)
{
struct alps_data *priv = psmouse->private;
struct input_dev *dev = psmouse->dev;
struct alps_fields *f = &priv->f;
+ int i, slot[MAX_TOUCHES];
+
+ input_mt_assign_slots(dev, slot, f->mt, n);
+ for (i = 0; i < n; i++)
+ alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y);
- alps_set_slot(dev, 0, num_fingers != 0, f->mt[0].x, f->mt[0].y);
- alps_set_slot(dev, 1, num_fingers == 2, f->mt[1].x, f->mt[1].y);
+ input_mt_sync_frame(dev);
}
static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
@@ -674,12 +675,7 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse)
fingers = f->pressure > 0 ? 1 : 0;
}
- if (f->pressure >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
- else
- input_report_key(dev, BTN_TOUCH, 0);
-
- alps_report_semi_mt_data(psmouse, fingers);
+ alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 1);
input_mt_report_finger_count(dev, fingers);
@@ -687,10 +683,6 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse)
input_report_key(dev, BTN_RIGHT, f->right);
input_report_key(dev, BTN_MIDDLE, f->middle);
- if (f->pressure > 0) {
- input_report_abs(dev, ABS_X, f->st.x);
- input_report_abs(dev, ABS_Y, f->st.y);
- }
input_report_abs(dev, ABS_PRESSURE, f->pressure);
input_sync(dev);
@@ -853,22 +845,13 @@ static void alps_process_packet_v4(struct psmouse *psmouse)
fingers = f->fingers;
}
- if (f->pressure >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
- else
- input_report_key(dev, BTN_TOUCH, 0);
-
- alps_report_semi_mt_data(psmouse, fingers);
+ alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 1);
input_mt_report_finger_count(dev, fingers);
input_report_key(dev, BTN_LEFT, f->left);
input_report_key(dev, BTN_RIGHT, f->right);
- if (f->pressure > 0) {
- input_report_abs(dev, ABS_X, f->st.x);
- input_report_abs(dev, ABS_Y, f->st.y);
- }
input_report_abs(dev, ABS_PRESSURE, f->pressure);
input_sync(dev);
@@ -2003,17 +1986,14 @@ static void alps_set_abs_params_st(struct alps_data *priv,
static void alps_set_abs_params_mt(struct alps_data *priv,
struct input_dev *dev1)
{
- set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
- input_mt_init_slots(dev1, 2, 0);
input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0);
input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0);
- set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit);
+ input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER |
+ INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT);
+
set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
-
- input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0);
- input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0);
}
int alps_init(struct psmouse *psmouse)
--
2.0.0
--
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