Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[sfrench/cifs-2.6.git] / drivers / input / mouse / elantech.c

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 22b9ca901f4e96c22499ce9723c0d2bd897c6fbb..2955f1d0ca6c4c9137f786028ca36bff706beab2 100644 (file)
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -783,19 +783,26 @@ static int elantech_packet_check_v4(struct psmouse *psmouse)
        struct elantech_data *etd = psmouse->private;
        unsigned char *packet = psmouse->packet;
        unsigned char packet_type = packet[3] & 0x03;
+       unsigned int ic_version;
        bool sanity_check;
 
        if (etd->tp_dev && (packet[3] & 0x0f) == 0x06)
                return PACKET_TRACKPOINT;
 
+       /* This represents the version of IC body. */
+       ic_version = (etd->fw_version & 0x0f0000) >> 16;
+
        /*
         * Sanity check based on the constant bits of a packet.
         * The constant bits change depending on the value of
-        * the hardware flag 'crc_enabled' but are the same for
-        * every packet, regardless of the type.
+        * the hardware flag 'crc_enabled' and the version of
+        * the IC body, but are the same for every packet,
+        * regardless of the type.
         */
        if (etd->crc_enabled)
                sanity_check = ((packet[3] & 0x08) == 0x00);
+       else if (ic_version == 7 && etd->samples[1] == 0x2A)
+               sanity_check = ((packet[3] & 0x1c) == 0x10);
        else
                sanity_check = ((packet[0] & 0x0c) == 0x04 &&
                                (packet[3] & 0x1c) == 0x10);
@@ -1116,6 +1123,7 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
  * Avatar AVIU-145A2       0x361f00        ?               clickpad
  * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
  * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
+ * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
  * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)
  * Gigabyte U2442          0x450f01        58, 17, 0c      2 hw buttons
  * Lenovo L430             0x350f02        b9, 15, 0c      2 hw buttons (*)
@@ -1651,6 +1659,16 @@ int elantech_init(struct psmouse *psmouse)
                     etd->capabilities[0], etd->capabilities[1],
                     etd->capabilities[2]);
 
+       if (etd->hw_version != 1) {
+               if (etd->send_cmd(psmouse, ETP_SAMPLE_QUERY, etd->samples)) {
+                       psmouse_err(psmouse, "failed to query sample data\n");
+                       goto init_fail;
+               }
+               psmouse_info(psmouse,
+                            "Elan sample query result %02x, %02x, %02x\n",
+                            etd->samples[0], etd->samples[1], etd->samples[2]);
+       }
+
        if (elantech_set_absolute_mode(psmouse)) {
                psmouse_err(psmouse,
                            "failed to put touchpad into absolute mode.\n");