Few Fuze/e200v2 button fixes. Don't read the scrollwheel when the hold button is active and rename a variable to describe better what it is for.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20701 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/as3525/kernel-as3525.c

@@ -25,8 +25,8 @@
 #include "timer-target.h"
 
 #ifdef HAVE_SCROLLWHEEL
+#include "button-target.h"
 /* The scrollwheel is polled every 5 ms (the tick tasks only every 10) */
-extern void button_read_dbop(void);
 static volatile int poll_scrollwheel = 0;
 
 void INT_TIMER2(void)
@@ -34,7 +34,10 @@ void INT_TIMER2(void)
     if (!poll_scrollwheel)
         call_tick_tasks();  /* Run through the list of tick tasks */
     else
+    {
+        if (!button_hold())
             button_read_dbop();
+    }
 
     poll_scrollwheel ^= 1;
     TIMER2_INTCLR = 0;  /* clear interrupt */

firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c

@@ -55,7 +55,7 @@ static void scrollwheel(short dbop_din)
     unsigned        btn             = BUTTON_NONE;
     /* old wheel values */
     static unsigned old_wheel_value = 0;
-    static unsigned wheel_repeat    = BUTTON_NONE;
+    static unsigned old_btn         = BUTTON_NONE;
 
     /* getting BUTTON_REPEAT works like this: Remember when the btn value was
      * posted to the button_queue last, and if it was recent enough, generate
@@ -78,6 +78,12 @@ static void scrollwheel(short dbop_din)
         { 1, 3, 0, 2 }, /* Counter-clockwise  */ 
     };
 
+    if(hold_button)
+    {
+        repeat  =  counter  = 0;
+        return;
+    }
+
     wheel_value = dbop_din & (1<<13|1<<14);
     wheel_value >>= 13;
 
@@ -88,10 +94,10 @@ static void scrollwheel(short dbop_din)
 
     if (btn != BUTTON_NONE)
     {
-        if (btn != wheel_repeat)
+        if (btn != old_btn)
         {
             /* direction reversals nullify repeats */
-            wheel_repeat        = btn;
+            old_btn =  btn;
             repeat  =  counter  = 0;
         }
         if (btn != BUTTON_NONE)

firmware/target/arm/as3525/sansa-e200v2/button-target.h

@@ -30,6 +30,7 @@
 bool button_hold(void);
 void button_init_device(void);
 int button_read_device(void);
+short button_read_dbop(void);
 
 /* Sandisk Sansa E200 button codes */
 

firmware/target/arm/as3525/sansa-fuze/button-fuze.c

@@ -56,7 +56,7 @@ static void scrollwheel(short dbop_din)
     unsigned        btn             = BUTTON_NONE;
     /* old wheel values */
     static unsigned old_wheel_value = 0;
-    static unsigned wheel_repeat    = BUTTON_NONE;
+    static unsigned old_btn         = BUTTON_NONE;
 
     /* getting BUTTON_REPEAT works like this: We increment repeat by 2 if the
      * wheel was turned, and decrement it by 1 each tick,
@@ -76,6 +76,13 @@ static void scrollwheel(short dbop_din)
         { 2, 0, 3, 1 }, /* Clockwise rotation */
         { 1, 3, 0, 2 }, /* Counter-clockwise  */ 
     };
+
+    if(hold_button)
+    {
+        repeat  =  counter  = 0;
+        return;
+    }
+
     wheel_value = dbop_din & (1<<13|1<<14);
     wheel_value >>= 13;
 
@@ -86,10 +93,10 @@ static void scrollwheel(short dbop_din)
 
     if (btn != BUTTON_NONE)
     {
-        if (btn != wheel_repeat)
+        if (btn != old_btn)
         {
             /* direction reversals nullify repeats */
-            wheel_repeat        = btn;
+            old_btn =  btn;
             repeat  =  counter  = 0;
         }
         if (btn != BUTTON_NONE)

firmware/target/arm/as3525/sansa-fuze/button-target.h

@@ -30,7 +30,7 @@
 void button_init_device(void);
 bool button_hold(void);
 int button_read_device(void);
-
+short button_read_dbop(void);
 /* Sandisk Sansa Fuze button codes */
 
 /* Main unit's buttons */