Fix non-hold button and headphone detection target sims.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22800 a1c6a512-1295-4272-9138-f99709370657

firmware/drivers/button.c

@@ -87,7 +87,7 @@ static int button_read(void);
 #ifdef HAVE_TOUCHSCREEN
 static int last_touchscreen_touch;
 #endif    
-#if defined(HAVE_HEADPHONE_DETECTION) && !defined(SIMULATOR)
+#if defined(HAVE_HEADPHONE_DETECTION)
 static struct timeout hp_detect_timeout; /* Debouncer for headphone plug/unplug */
 /* This callback can be used for many different functions if needed -
    just check to which object tmo points */

uisimulator/sdl/button-sdl.h

@@ -27,7 +27,6 @@
 #include "config.h"
 #include "button-target.h"
 
-#define HAS_BUTTON_HOLD
 #undef HAVE_LCD_FLIP
 
 #undef button_init_device

uisimulator/sdl/button.c

@@ -1216,17 +1216,23 @@ int button_read_device(int* data)
 int button_read_device(void)
 {
 #endif
-    static int hold_button_old = false;
+
+#ifdef HAS_BUTTON_HOLD
     int hold_button = button_hold();
+
+#ifdef HAVE_BACKLIGHT
     /* light handling */
+    static int hold_button_old = false;
     if (hold_button != hold_button_old)
     {
         hold_button_old = hold_button;
         backlight_hold_changed(hold_button);
     }
+#endif
 
     if (hold_button)
         return BUTTON_NONE;
+#endif
 
     return btn;
 }