+static void synaptics_report_buttons(struct psmouse *psmouse,
+ const struct synaptics_hw_state *hw)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ int i;
+
+ input_report_key(dev, BTN_LEFT, hw->left);
+ input_report_key(dev, BTN_RIGHT, hw->right);
+
+ if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+ input_report_key(dev, BTN_MIDDLE, hw->middle);
+
+ if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+ input_report_key(dev, BTN_FORWARD, hw->up);
+ input_report_key(dev, BTN_BACK, hw->down);
+ }
+
+ for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+ input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
+}
+
+static void synaptics_report_slot(struct input_dev *dev, int slot,
+ const struct synaptics_hw_state *hw)
+{
+ input_mt_slot(dev, slot);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL));
+ if (!hw)
+ return;
+
+ input_report_abs(dev, ABS_MT_POSITION_X, hw->x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y));
+ input_report_abs(dev, ABS_MT_PRESSURE, hw->z);
+}
+
+static void synaptics_report_mt_data(struct psmouse *psmouse,
+ int count,
+ const struct synaptics_hw_state *sgm)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_hw_state *agm = &priv->agm;
+
+ switch (count) {
+ case 0:
+ synaptics_report_slot(dev, 0, NULL);
+ synaptics_report_slot(dev, 1, NULL);
+ break;
+ case 1:
+ synaptics_report_slot(dev, 0, sgm);
+ synaptics_report_slot(dev, 1, NULL);
+ break;
+ case 2:
+ case 3: /* Fall-through case */
+ synaptics_report_slot(dev, 0, sgm);
+ synaptics_report_slot(dev, 1, agm);
+ break;
+ }
+
+ /* Don't use active slot count to generate BTN_TOOL events. */
+ input_mt_report_pointer_emulation(dev, false);
+
+ /* Send the number of fingers reported by touchpad itself. */
+ input_mt_report_finger_count(dev, count);
+
+ synaptics_report_buttons(psmouse, sgm);
+
+ input_sync(dev);
+}
+
+static void synaptics_image_sensor_process(struct psmouse *psmouse,
+ struct synaptics_hw_state *sgm)
+{
+ int count;
+
+ if (sgm->z == 0)
+ count = 0;
+ else if (sgm->w >= 4)
+ count = 1;
+ else if (sgm->w == 0)
+ count = 2;
+ else
+ count = 3;
+
+ /* Send resulting input events to user space */
+ synaptics_report_mt_data(psmouse, count, sgm);
+}
+