1 files changed, 30 insertions, 1 deletions

diff --git a/drivers/input/mouse/hgpk.h b/drivers/input/mouse/hgpk.h
index d61cfd3ee9cb..311c0e87fcbf 100644
--- a/drivers/input/mouse/hgpk.h
+++ b/drivers/input/mouse/hgpk.h
@@ -5,6 +5,9 @@
 #ifndef _HGPK_H
 #define _HGPK_H
 
+#define HGPK_GS         0xff       /* The GlideSensor */
+#define HGPK_PT         0xcf       /* The PenTablet */
+
 enum hgpk_model_t {
         HGPK_MODEL_PREA = 0x0a, /* pre-B1s */
         HGPK_MODEL_A = 0x14,    /* found on B1s, PT disabled in hardware */
@@ -13,12 +16,34 @@ enum hgpk_model_t {
         HGPK_MODEL_D = 0x50,    /* C1, mass production */
 };
 
+enum hgpk_spew_flag {
+        NO_SPEW,
+        MAYBE_SPEWING,
+        SPEW_DETECTED,
+        RECALIBRATING,
+};
+
+#define SPEW_WATCH_COUNT 42  /* at 12ms/packet, this is 1/2 second */
+
+enum hgpk_mode {
+        HGPK_MODE_MOUSE,
+        HGPK_MODE_GLIDESENSOR,
+        HGPK_MODE_PENTABLET,
+        HGPK_MODE_INVALID
+};
+
 struct hgpk_data {
         struct psmouse *psmouse;
+        enum hgpk_mode mode;
         bool powered;
-        int count, x_tally, y_tally;    /* hardware workaround stuff */
+        enum hgpk_spew_flag spew_flag;
+        int spew_count, x_tally, y_tally;       /* spew detection */
         unsigned long recalib_window;
         struct delayed_work recalib_wq;
+        int abs_x, abs_y;
+        int dupe_count;
+        int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
+        int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
 };
 
 #define hgpk_dbg(psmouse, format, arg...)               \
@@ -33,9 +58,13 @@ struct hgpk_data {
         dev_notice(&(psmouse)->ps2dev.serio->dev, format, ## arg)
 
 #ifdef CONFIG_MOUSE_PS2_OLPC
+void hgpk_module_init(void);
 int hgpk_detect(struct psmouse *psmouse, bool set_properties);
 int hgpk_init(struct psmouse *psmouse);
 #else
+static inline void hgpk_module_init(void)
+{
+}
 static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties)
 {
         return -ENODEV;