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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.c68
1 files changed, 52 insertions, 16 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index e8573c68f77e..fd23181c1fb7 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -629,10 +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
@@ -651,21 +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) {