Miscellany

Index: firmware/target/arm/ipod/3g/button-3g.c
===================================================================
--- firmware/target/arm/ipod/3g/button-3g.c     (revision 12631)
+++ firmware/target/arm/ipod/3g/button-3g.c     (working copy)
@@ -40,6 +40,8 @@
 #include "system.h"
 #include "powermgmt.h"

+#define MIN_SENSITIVITY 6
+
 /* iPod 3G and mini 1G, mini 2G uses iPod 4G code */
 void handle_scroll_wheel(int new_scroll, int was_hold, int reverse)
 {
@@ -54,18 +56,30 @@
         {0, -1, 1, 0}
     };

+    /* Increases speed of scrolling if wheel rotated faster */
+    static long old_tick = -1;
+    long new_tick = current_tick;
+    static int sensitivity = MIN_SENSITIVITY;
+
+    if ( TIME_AFTER( old_tick, new_tick ) >= 1 ) { /* lowest sensitivity */
+        sensitivity = MIN_SENSITIVITY;
+    }
+    old_tick = new_tick;
+
     if ( prev_scroll == -1 ) {
         prev_scroll = new_scroll;
     }
     else if (direction != scroll_state[prev_scroll][new_scroll]) {
         direction = scroll_state[prev_scroll][new_scroll];
         count = 0;
+        sensitivity = MIN_SENSITIVITY;
     }
     else if (!was_hold) {
         backlight_on();
         reset_poweroff_timer();
-        if (++count == 6) { /* reduce sensitivity */
+        if (++count >= sensitivity ) { /* dynamic sensitivity */
             count = 0;
+            if ( --sensitivity == 0 ) sensitivity = 1;
             switch (direction) {
                 case 1:
                     if (reverse) {