Input: Add support of Synaptics Clickpad device
The new type of touchpads can be detected via a new query command
0x0c. The clickpad flags are in cap[0]:4 and cap[1]:0 bits.
When the device is detected, the driver now reports only the left
button as the supported buttons so that X11 driver can detect that
the device is Clickpad. A Clickpad device gives the button events
only as the middle button. The kernel driver morphs to the left
button. The real handling of Clickpad is done rather in X driver
side.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index d3f5243..9ab9ff0 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -136,7 +136,8 @@
if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
return -1;
priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
- priv->ext_cap = 0;
+ priv->ext_cap = priv->ext_cap_0c = 0;
+
if (!SYN_CAP_VALID(priv->capabilities))
return -1;
@@ -149,7 +150,7 @@
if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
printk(KERN_ERR "Synaptics claims to have extended capabilities,"
- " but I'm not able to read them.");
+ " but I'm not able to read them.\n");
} else {
priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
@@ -161,6 +162,16 @@
priv->ext_cap &= 0xff0fff;
}
}
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
+ printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
+ " but I'm not able to read it.\n");
+ } else {
+ priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+ }
+ }
+
return 0;
}
@@ -347,7 +358,15 @@
hw->left = (buf[0] & 0x01) ? 1 : 0;
hw->right = (buf[0] & 0x02) ? 1 : 0;
- if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
+ 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
+ * it as BTN_LEFT.
+ */
+ hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+
+ } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
if (hw->w == 2)
hw->scroll = (signed char)(buf[1]);
@@ -592,6 +611,12 @@
dev->absres[ABS_X] = priv->x_res;
dev->absres[ABS_Y] = priv->y_res;
+
+ if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ /* Clickpads report only left button */
+ __clear_bit(BTN_RIGHT, dev->keybit);
+ __clear_bit(BTN_MIDDLE, dev->keybit);
+ }
}
static void synaptics_disconnect(struct psmouse *psmouse)
@@ -696,10 +721,10 @@
priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
- printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n",
+ printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
SYN_ID_MODEL(priv->identity),
SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
- priv->model_id, priv->capabilities, priv->ext_cap);
+ priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
set_input_params(psmouse->dev, priv);