YH8xx,YH9xx: Keymap improvement

The main "innovation" in this patch are two "virtual buttons"
for the record switch on YH92x targets. When the switch state
changes, a single BUTTON_REC_SW_ON or .._OFF button event will
be generated. Thus keymap code can react on switching, but
not on the actual state of the switch.

Wherever sensible, the following user scheme is applied:
- use PLAY as confirm button
- use REW button or Long REW to exit
- use REC (YH820) or FFWD (YH92X) as modifier key for button combos

Change-Id: Ic8d1db9cc6869daed8dda98990dfdf7f6fd5d5a1

apps/plugins/flipit.c

@@ -351,11 +351,11 @@
 #define FLIPIT_RIGHT        BUTTON_RIGHT
 #define FLIPIT_UP           BUTTON_UP
 #define FLIPIT_DOWN         BUTTON_DOWN
-#define FLIPIT_QUIT         BUTTON_REC
-#define FLIPIT_SHUFFLE      BUTTON_PLAY
-#define FLIPIT_SOLVE        BUTTON_FFWD
-#define FLIPIT_STEP_BY_STEP (BUTTON_FFWD|BUTTON_UP)
-#define FLIPIT_TOGGLE       BUTTON_REW
+#define FLIPIT_QUIT         (BUTTON_REW|BUTTON_REPEAT)
+#define FLIPIT_SHUFFLE      (BUTTON_REW|BUTTON_REL)
+#define FLIPIT_SOLVE        (BUTTON_FFWD|BUTTON_REPEAT)
+#define FLIPIT_STEP_BY_STEP (BUTTON_FFWD|BUTTON_REL)
+#define FLIPIT_TOGGLE       BUTTON_PLAY
 
 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 
@@ -941,6 +941,13 @@ enum plugin_status plugin_start(const void* parameter)
     rb->lcd_putsxy(2, 28, "[VOL+] shuffle");
     rb->lcd_putsxy(2, 38, "[PREV] solution");
     rb->lcd_putsxy(2, 48, "[NEXT] step by step");
+#elif (CONFIG_KEYPAD == SAMSUNG_YH920_PAD) || \
+      (CONFIG_KEYPAD == SAMSUNG_YH820_PAD)
+    rb->lcd_putsxy(2, 8, "Long [REW] to stop");
+    rb->lcd_putsxy(2, 18, "[PLAY] toggle");
+    rb->lcd_putsxy(2, 28, "[REW] shuffle");
+    rb->lcd_putsxy(2, 38, "Long [FFWD] solution");
+    rb->lcd_putsxy(2, 48, "[FFWD] step by step");
 #endif
 
 #ifdef HAVE_TOUCHSCREEN