Input: synaptics - decode AGM packet types

[~andy/linux] / drivers / input / mouse / synaptics.h

diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index 0ea7616e8fe16917af7bcfdc14464d3217eda0a3..20f57dfebed1a1777cf4eb53f77e6e177017d048 100644 (file)
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -115,9 +115,18 @@
 #define SYN_REDUCED_FILTER_FUZZ                8
 
 /*
- * A structure to describe the state of the touchpad hardware (buttons and pad)
+ * A structure to describe which internal touchpad finger slots are being
+ * reported in raw packets.
  */
+struct synaptics_mt_state {
+       int count;                      /* num fingers being tracked */
+       int sgm;                        /* which slot is reported by sgm pkt */
+       int agm;                        /* which slot is reported by agm pkt*/
+};
 
+/*
+ * A structure to describe the state of the touchpad hardware (buttons and pad)
+ */
 struct synaptics_hw_state {
        int x;
        int y;
@@ -130,6 +139,9 @@ struct synaptics_hw_state {
        unsigned int down:1;
        unsigned char ext_buttons;
        signed char scroll;
+
+       /* As reported in last AGM-CONTACT packets */
+       struct synaptics_mt_state mt_state;
 };
 
 struct synaptics_data {