Input: psmouse - attempt to re-synchronize mouse every 5 seconds

This should help driver to deal vith KVMs that reset mice when
switching between boxes.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/mouse/alps.c

@@ -348,6 +348,40 @@ static int alps_tap_mode(struct psmouse *psmouse, int enable)
 	return 0;
 }
 
+/*
+ * alps_poll() - poll the touchpad for current motion packet.
+ * Used in resync.
+ */
+static int alps_poll(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	unsigned char buf[6];
+	int poll_failed;
+
+	if (priv->i->flags & ALPS_PASS)
+		alps_passthrough_mode(psmouse, 1);
+
+	poll_failed = ps2_command(&psmouse->ps2dev, buf,
+				  PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
+
+	if (priv->i->flags & ALPS_PASS)
+		alps_passthrough_mode(psmouse, 0);
+
+	if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
+		return -1;
+
+	if ((psmouse->badbyte & 0xc8) == 0x08) {
+/*
+ * Poll the track stick ...
+ */
+		if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
+			return -1;
+	}
+
+	memcpy(psmouse->packet, buf, sizeof(buf));
+	return 0;
+}
+
 static int alps_reconnect(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
@@ -451,10 +485,14 @@ int alps_init(struct psmouse *psmouse)
 	input_register_device(priv->dev2);
 
 	psmouse->protocol_handler = alps_process_byte;
+	psmouse->poll = alps_poll;
 	psmouse->disconnect = alps_disconnect;
 	psmouse->reconnect = alps_reconnect;
 	psmouse->pktsize = 6;
 
+	/* We are having trouble resyncing ALPS touchpads so disable it for now */
+	psmouse->resync_time = 0;
+
 	return 0;
 
 init_fail:

drivers/input/mouse/logips2pp.c

@@ -117,7 +117,7 @@ static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned cha
 	if (psmouse_sliced_command(psmouse, command))
 		return -1;
 
-	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL))
+	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL | 0x0300))
 		return -1;
 
 	return 0;