a bit nicer: delay of the disk activity indicator is supplied by app layer

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6019 a1c6a512-1295-4272-9138-f99709370657

apps/status.c

@@ -160,7 +160,7 @@ void status_draw(bool force_redraw)
     info.repeat = global_settings.repeat_mode;
     info.playmode = current_playmode();
 #ifndef HAVE_LED
-	info.led = led_read();
+    info.led = led_read(HZ/2); /* delay should match polling interval */
 #endif
 
     /* only redraw if forced to, or info has changed */

firmware/drivers/led.c

@@ -63,13 +63,13 @@ void invert_led(bool on)
 
 #else /* no LED, just status update */
 
-static long delay; 
+static long last_on; /* timestamp of switching off */
 
 void led(bool on)
 {
     if (current && !on) /* switching off */
     {
-		delay = current_tick + HZ/2; /* delay the "off" status a bit */
+        last_on = current_tick; /* remember for off delay */
     }
     current = on;
 }
@@ -79,9 +79,10 @@ void invert_led(bool on)
     (void)on; /* no invert feature */
 }
 
-bool led_read(void) /* read by status bar update */
+bool led_read(int delayticks) /* read by status bar update */
 {
-	return (current || TIME_BEFORE(current_tick, delay));
+    /* reading "off" is delayed by user-supplied monoflop value */
+    return (current || TIME_BEFORE(current_tick, last_on+delayticks));
 }
 
 #endif // #ifdef HAVE_LED

firmware/export/led.h

@@ -25,7 +25,7 @@
 extern void led( bool on );
 extern void invert_led( bool on );
 #ifndef HAVE_LED
-extern bool led_read(void); /* read for status bar */
+extern bool led_read(int delayticks); /* read for status bar */
 #endif
 
 #endif