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path: root/drivers/input/mouse/synaptics.c
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Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r--drivers/input/mouse/synaptics.c124
1 files changed, 107 insertions, 17 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 8e9360ab4ec..e6e59c59391 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -304,7 +304,8 @@ static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
static unsigned char param = 0xc8;
struct synaptics_data *priv = psmouse->private;
- if (!SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
+ if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+ SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
return 0;
if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
@@ -463,7 +464,9 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
}
- if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) && hw->w == 2) {
+ if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+ SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
+ hw->w == 2) {
synaptics_parse_agm(buf, priv);
return 1;
}
@@ -543,6 +546,94 @@ static void synaptics_report_semi_mt_data(struct input_dev *dev,
}
}
+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);
+}
+
/*
* called for each full received packet from the touchpad
*/
@@ -553,11 +644,15 @@ static void synaptics_process_packet(struct psmouse *psmouse)
struct synaptics_hw_state hw;
int num_fingers;
int finger_width;
- int i;
if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
return;
+ if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+ synaptics_image_sensor_process(psmouse, &hw);
+ return;
+ }
+
if (hw.scroll) {
priv->scroll += hw.scroll;
@@ -623,24 +718,12 @@ static void synaptics_process_packet(struct psmouse *psmouse)
input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
- input_report_key(dev, BTN_LEFT, hw.left);
- input_report_key(dev, BTN_RIGHT, hw.right);
-
if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
}
- 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));
+ synaptics_report_buttons(psmouse, &hw);
input_sync(dev);
}
@@ -739,7 +822,14 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
set_abs_position_params(dev, priv, ABS_X, ABS_Y);
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
- if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
+ if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+ input_mt_init_slots(dev, 2);
+ set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
+ ABS_MT_POSITION_Y);
+ /* Image sensors can report per-contact pressure */
+ input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+ } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
+ /* Non-image sensors with AGM use semi-mt */
__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
input_mt_init_slots(dev, 2);
set_abs_position_params(dev, priv, ABS_MT_POSITION_X,