@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <linux/dmi.h>
-#include <linux/input.h>
+#include <linux/input/mt.h>
#include <linux/serio.h>
#include <linux/libps2.h>
#include <linux/slab.h>
@@ -489,6 +489,34 @@ static int synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *
return 0;
}
+static void set_slot(struct input_dev *dev, int slot, bool active, 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,
+ YMAX_NOMINAL + YMIN_NOMINAL - y);
+ }
+}
+
+static void synaptics_report_mt_data(struct input_dev *dev,
+ const struct synaptics_hw_state *a,
+ const struct synaptics_hw_state *b,
+ int num_fingers)
+{
+ if (num_fingers >= 2) {
+ set_slot(dev, 0, true, min(a->x, b->x), min(a->y, b->y));
+ set_slot(dev, 1, true, max(a->x, b->x), max(a->y, b->y));
+ } else if (num_fingers == 1) {
+ set_slot(dev, 0, true, a->x, a->y);
+ set_slot(dev, 1, false, 0, 0);
+ } else {
+ set_slot(dev, 0, false, 0, 0);
+ set_slot(dev, 1, false, 0, 0);
+ }
+}
+
/*
* called for each full received packet from the touchpad
*/
@@ -551,6 +579,9 @@ static void synaptics_process_packet(struct psmouse *psmouse)
finger_width = 0;
}
+ if (priv->multitouch)
+ synaptics_report_mt_data(dev, &hw, &priv->mt, num_fingers);
+
/* Post events
* BTN_TOUCH has to be first as mousedev relies on it when doing
* absolute -> relative conversion
@@ -662,6 +693,7 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
int i;
__set_bit(INPUT_PROP_POINTER, dev->propbit);
+ __set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
__set_bit(EV_ABS, dev->evbit);
input_set_abs_params(dev, ABS_X,
@@ -670,6 +702,14 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0);
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+ if (priv->multitouch) {
+ input_mt_init_slots(dev, 2);
+ input_set_abs_params(dev, ABS_MT_POSITION_X, XMIN_NOMINAL,
+ priv->x_max ?: XMAX_NOMINAL, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y, YMIN_NOMINAL,
+ priv->y_max ?: YMAX_NOMINAL, 0, 0);
+ }
+
if (SYN_CAP_PALMDETECT(priv->capabilities))
input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);