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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.c140
1 files changed, 121 insertions, 19 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index ef9e0b8a9aa7..fd23181c1fb7 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -117,6 +117,9 @@ void synaptics_reset(struct psmouse *psmouse)
}
#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
+
+static bool cr48_profile_sensor;
+
struct min_max_quirk {
const char * const *pnp_ids;
int x_min, x_max, y_min, y_max;
@@ -626,10 +629,61 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
((buf[0] & 0x04) >> 1) |
((buf[3] & 0x04) >> 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, hw);
+ return 1;
+ }
+
+ hw->x = (((buf[3] & 0x10) << 8) |
+ ((buf[1] & 0x0f) << 8) |
+ buf[4]);
+ hw->y = (((buf[3] & 0x20) << 7) |
+ ((buf[1] & 0xf0) << 4) |
+ buf[5]);
+ hw->z = buf[2];
+
hw->left = (buf[0] & 0x01) ? 1 : 0;
hw->right = (buf[0] & 0x02) ? 1 : 0;
- if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ if (SYN_CAP_FORCEPAD(priv->ext_cap_0c)) {
+ /*
+ * ForcePads, like Clickpads, use middle button
+ * bits to report primary button clicks.
+ * Unfortunately they report primary button not
+ * only when user presses on the pad above certain
+ * threshold, but also when there are more than one
+ * finger on the touchpad, which interferes with
+ * out multi-finger gestures.
+ */
+ if (hw->z == 0) {
+ /* No contacts */
+ priv->press = priv->report_press = false;
+ } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) {
+ /*
+ * Single-finger touch with pressure above
+ * the threshold. If pressure stays long
+ * enough, we'll start reporting primary
+ * button. We rely on the device continuing
+ * sending data even if finger does not
+ * move.
+ */
+ if (!priv->press) {
+ priv->press_start = jiffies;
+ priv->press = true;
+ } else if (time_after(jiffies,
+ priv->press_start +
+ msecs_to_jiffies(50))) {
+ priv->report_press = true;
+ }
+ } else {
+ priv->press = false;
+ }
+
+ hw->left = priv->report_press;
+
+ } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
/*
* Clickpad's button is transmitted as middle button,
* however, since it is primary button, we will report
@@ -648,21 +702,6 @@ 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) ||
- SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
- hw->w == 2) {
- synaptics_parse_agm(buf, priv, hw);
- return 1;
- }
-
- hw->x = (((buf[3] & 0x10) << 8) |
- ((buf[1] & 0x0f) << 8) |
- buf[4]);
- hw->y = (((buf[3] & 0x20) << 7) |
- ((buf[1] & 0xf0) << 4) |
- buf[5]);
- hw->z = buf[2];
-
if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
((buf[0] ^ buf[3]) & 0x02)) {
switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
@@ -1152,6 +1191,42 @@ static void synaptics_image_sensor_process(struct psmouse *psmouse,
priv->agm_pending = false;
}
+static void synaptics_profile_sensor_process(struct psmouse *psmouse,
+ struct synaptics_hw_state *sgm,
+ int num_fingers)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
+ struct input_mt_pos pos[2];
+ int slot[2], nsemi, i;
+
+ nsemi = clamp_val(num_fingers, 0, 2);
+
+ for (i = 0; i < nsemi; i++) {
+ pos[i].x = hw[i]->x;
+ pos[i].y = synaptics_invert_y(hw[i]->y);
+ }
+
+ input_mt_assign_slots(dev, slot, pos, nsemi);
+
+ for (i = 0; i < nsemi; i++) {
+ input_mt_slot(dev, slot[i]);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+ input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
+ input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
+ }
+
+ input_mt_drop_unused(dev);
+ input_mt_report_pointer_emulation(dev, false);
+ input_mt_report_finger_count(dev, num_fingers);
+
+ synaptics_report_buttons(psmouse, sgm);
+
+ input_sync(dev);
+}
+
/*
* called for each full received packet from the touchpad
*/
@@ -1215,6 +1290,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
finger_width = 0;
}
+ if (cr48_profile_sensor) {
+ synaptics_profile_sensor_process(psmouse, &hw, num_fingers);
+ return;
+ }
+
if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
num_fingers);
@@ -1360,6 +1440,9 @@ static void set_input_params(struct psmouse *psmouse,
set_abs_position_params(dev, priv, ABS_X, ABS_Y);
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+ if (cr48_profile_sensor)
+ input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+
if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
ABS_MT_POSITION_Y);
@@ -1371,11 +1454,16 @@ static void set_input_params(struct psmouse *psmouse,
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
__set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
} 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, 0);
set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
ABS_MT_POSITION_Y);
+ /*
+ * Profile sensor in CR-48 tracks contacts reasonably well,
+ * other non-image sensors with AGM use semi-mt.
+ */
+ input_mt_init_slots(dev, 2,
+ INPUT_MT_POINTER |
+ (cr48_profile_sensor ?
+ INPUT_MT_TRACK : INPUT_MT_SEMI_MT));
}
if (SYN_CAP_PALMDETECT(priv->capabilities))
@@ -1577,10 +1665,24 @@ static const struct dmi_system_id olpc_dmi_table[] __initconst = {
{ }
};
+static const struct dmi_system_id __initconst cr48_dmi_table[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
+ {
+ /* Cr-48 Chromebook (Codename Mario) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IEC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
+ },
+ },
+#endif
+ { }
+};
+
void __init synaptics_module_init(void)
{
impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
broken_olpc_ec = dmi_check_system(olpc_dmi_table);
+ cr48_profile_sensor = dmi_check_system(cr48_dmi_table);
}
static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-05 10:20:14 +0000