1 files changed, 77 insertions, 1 deletions

diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 02513c0502fc..6dfdccc3a7c6 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -22,14 +22,90 @@
 #define ALPS_PROTO_V5           0x500
 #define ALPS_PROTO_V6           0x600
 #define ALPS_PROTO_V7           0x700   /* t3btl t4s */
+#define ALPS_PROTO_V8           0x800   /* SS4btl SS4s */
 
-#define MAX_TOUCHES     2
+#define MAX_TOUCHES     4
 
 #define DOLPHIN_COUNT_PER_ELECTRODE     64
 #define DOLPHIN_PROFILE_XOFFSET         8       /* x-electrode offset */
 #define DOLPHIN_PROFILE_YOFFSET         1       /* y-electrode offset */
 
 /*
+ * enum SS4_PACKET_ID - defines the packet type for V8
+ * SS4_PACKET_ID_IDLE: There's no finger and no button activity.
+ * SS4_PACKET_ID_ONE: There's one finger on touchpad
+ *  or there's button activities.
+ * SS4_PACKET_ID_TWO: There's two or more fingers on touchpad
+ * SS4_PACKET_ID_MULTI: There's three or more fingers on touchpad
+*/
+enum SS4_PACKET_ID {
+        SS4_PACKET_ID_IDLE = 0,
+        SS4_PACKET_ID_ONE,
+        SS4_PACKET_ID_TWO,
+        SS4_PACKET_ID_MULTI,
+};
+
+#define SS4_COUNT_PER_ELECTRODE         256
+#define SS4_NUMSENSOR_XOFFSET           7
+#define SS4_NUMSENSOR_YOFFSET           7
+#define SS4_MIN_PITCH_MM                50
+
+#define SS4_MASK_NORMAL_BUTTONS         0x07
+
+#define SS4_1F_X_V2(_b)         ((_b[0] & 0x0007) |             \
+                                 ((_b[1] << 3) & 0x0078) |      \
+                                 ((_b[1] << 2) & 0x0380) |      \
+                                 ((_b[2] << 5) & 0x1C00)        \
+                                )
+
+#define SS4_1F_Y_V2(_b)         (((_b[2]) & 0x000F) |           \
+                                 ((_b[3] >> 2) & 0x0030) |      \
+                                 ((_b[4] << 6) & 0x03C0) |      \
+                                 ((_b[4] << 5) & 0x0C00)        \
+                                )
+
+#define SS4_1F_Z_V2(_b)         (((_b[5]) & 0x0F) |             \
+                                 ((_b[5] >> 1) & 0x70) |        \
+                                 ((_b[4]) & 0x80)               \
+                                )
+
+#define SS4_1F_LFB_V2(_b)       (((_b[2] >> 4) & 0x01) == 0x01)
+
+#define SS4_MF_LF_V2(_b, _i)    ((_b[1 + (_i) * 3] & 0x0004) == 0x0004)
+
+#define SS4_BTN_V2(_b)          ((_b[0] >> 5) & SS4_MASK_NORMAL_BUTTONS)
+
+#define SS4_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3] << 5) & 0x00E0) |   \
+                                 ((_b[1 + _i * 3]  << 5) & 0x1F00)      \
+                                )
+
+#define SS4_STD_MF_Y_V2(_b, _i) (((_b[1 + (_i) * 3] << 3) & 0x0010) |   \
+                                 ((_b[2 + (_i) * 3] << 5) & 0x01E0) |   \
+                                 ((_b[2 + (_i) * 3] << 4) & 0x0E00)     \
+                                )
+
+#define SS4_BTL_MF_X_V2(_b, _i) (SS4_STD_MF_X_V2(_b, _i) |              \
+                                 ((_b[0 + (_i) * 3] >> 3) & 0x0010)     \
+                                )
+
+#define SS4_BTL_MF_Y_V2(_b, _i) (SS4_STD_MF_Y_V2(_b, _i) | \
+                                 ((_b[0 + (_i) * 3] >> 3) & 0x0008)     \
+                                )
+
+#define SS4_MF_Z_V2(_b, _i)     (((_b[1 + (_i) * 3]) & 0x0001) |        \
+                                 ((_b[1 + (_i) * 3] >> 1) & 0x0002)     \
+                                )
+
+#define SS4_IS_MF_CONTINUE(_b)  ((_b[2] & 0x10) == 0x10)
+#define SS4_IS_5F_DETECTED(_b)  ((_b[2] & 0x10) == 0x10)
+
+
+#define SS4_MFPACKET_NO_AX      8160    /* X-Coordinate value */
+#define SS4_MFPACKET_NO_AY      4080    /* Y-Coordinate value */
+#define SS4_MFPACKET_NO_AX_BL   8176    /* Buttonless X-Coordinate value */
+#define SS4_MFPACKET_NO_AY_BL   4088    /* Buttonless Y-Coordinate value */
+
+/*
  * enum V7_PACKET_ID - defines the packet type for V7
  * V7_PACKET_ID_IDLE: There's no finger and no button activity.
  * V7_PACKET_ID_TWO: There's one or two non-resting fingers on touchpad