1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index d9e614409f92..236c33cdc708 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -16,6 +16,7 @@
 /*
  * Command values for Synaptics style queries
  */
+#define ETP_FW_ID_QUERY                 0x00
 #define ETP_FW_VERSION_QUERY            0x01
 #define ETP_CAPABILITIES_QUERY          0x02
 
@@ -24,6 +25,7 @@
  */
 #define ETP_REGISTER_READ               0x10
 #define ETP_REGISTER_WRITE              0x11
+#define ETP_REGISTER_READWRITE          0x00
 
 /*
  * Hardware version 2 custom PS/2 command value
@@ -79,6 +81,14 @@
 #define ETP_WMIN_V2                     0
 #define ETP_WMAX_V2                     15
 
+/*
+ * v3 hardware has 2 kinds of packet types.
+ */
+#define PACKET_UNKNOWN                  0x01
+#define PACKET_DEBOUNCE                 0x02
+#define PACKET_V3_HEAD                  0x03
+#define PACKET_V3_TAIL                  0x04
+
 struct elantech_data {
         unsigned char reg_10;
         unsigned char reg_11;
@@ -98,6 +108,8 @@ struct elantech_data {
         unsigned int fw_version;
         unsigned int single_finger_reports;
         unsigned int y_max;
+        unsigned int prev_x;
+        unsigned int prev_y;
         unsigned char parity[256];
 };