Input: ALPS - add support for "Dolphin" devices

This adds support for another flavor of ALPS protocol used in newer
"Dolphin" devices.

Signed-off-by: Yunkang Tang <yunkang.tang@cn.alps.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 704f0f924307..03f88b6940c7 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -19,6 +19,10 @@
 #define ALPS_PROTO_V5   5
 #define ALPS_PROTO_V6   6
 
+#define DOLPHIN_COUNT_PER_ELECTRODE     64
+#define DOLPHIN_PROFILE_XOFFSET         8       /* x-electrode offset */
+#define DOLPHIN_PROFILE_YOFFSET         1       /* y-electrode offset */
+
 /**
  * struct alps_model_info - touchpad ID table
  * @signature: E7 response string to match.
@@ -146,7 +150,8 @@ struct alps_data {
 
         int (*hw_init)(struct psmouse *psmouse);
         void (*process_packet)(struct psmouse *psmouse);
-        void (*decode_fields)(struct alps_fields *f, unsigned char *p);
+        void (*decode_fields)(struct alps_fields *f, unsigned char *p,
+                              struct psmouse *psmouse);
         void (*set_abs_params)(struct alps_data *priv, struct input_dev *dev1);
 
         int prev_fin;