10 files changed, 33 insertions, 0 deletions
diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c
index c91d222..020d6bf 100644
--- a/firmware/drivers/lcd-16bit.c
+++ b/firmware/drivers/lcd-16bit.c
@@ -49,6 +49,10 @@ fb_data lcd_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
 static fb_data* lcd_backdrop = NULL;
 static long lcd_backdrop_offset IDATA_ATTR = 0;
 
+#ifdef HAVE_LCD_ENABLE
+static void (*lcd_enable_hook)(void) = NULL;
+#endif
+
 static struct viewport default_vp =
 {
     .x        = 0,
@@ -84,6 +88,23 @@ void lcd_init(void)
     scroll_init();
 }
 
+/*** Helpers - consolidate optional code ***/
+#ifdef HAVE_LCD_ENABLE
+void lcd_set_enable_hook(void (*enable_hook)(void))
+{
+    lcd_enable_hook = enable_hook;
+}
+
+/* To be called by target driver after enabling display and refreshing it */
+void lcd_call_enable_hook(void)
+{
+   void (*enable_hook)(void) = lcd_enable_hook;
+
+    if (enable_hook != NULL)
+        enable_hook();
+}
+#endif
+
 /*** Viewports ***/
 
 void lcd_set_viewport(struct viewport* vp)
diff --git a/firmware/export/kernel.h b/firmware/export/kernel.h
index 60c37bd..88f3b80 100644
--- a/firmware/export/kernel.h
+++ b/firmware/export/kernel.h
@@ -45,6 +45,7 @@
 #define SYS_EVENT_CLS_FILESYS 3
 #define SYS_EVENT_CLS_PLUG    4
 #define SYS_EVENT_CLS_MISC    5
+#define SYS_EVENT_CLS_PRIVATE 7 /* For use inside plugins */
 /* make sure SYS_EVENT_CLS_BITS has enough range */
 
 /* Bit 31->|S|c...c|i...i| */
diff --git a/firmware/export/lcd.h b/firmware/export/lcd.h
index 3e0ec78..45a6850 100644
--- a/firmware/export/lcd.h
+++ b/firmware/export/lcd.h
@@ -341,6 +341,10 @@ void lcd_poweroff(void);
 /* Enable/disable the main display. */
 extern void lcd_enable(bool on);
 extern bool lcd_enabled(void);
+/* Register a hook that is called when the lcd is powered and after the
+ * framebuffer data is synchronized */
+void lcd_set_enable_hook(void (*enable_hook)(void));
+void lcd_call_enable_hook(void);
 #endif /* HAVE_LCD_ENABLE */
 
 #ifdef HAVE_LCD_SLEEP
diff --git a/firmware/target/arm/iriver/h10/lcd-h10_20gb.c b/firmware/target/arm/iriver/h10/lcd-h10_20gb.c
index 1ee43c3..7d94266 100644
--- a/firmware/target/arm/iriver/h10/lcd-h10_20gb.c
+++ b/firmware/target/arm/iriver/h10/lcd-h10_20gb.c
@@ -361,6 +361,7 @@ void lcd_enable(bool on)
         /* Probably out of sync and we don't wanna pepper the code with
            lcd_update() calls for this. */
         lcd_update();
+        lcd_call_enable_hook();
     }
     else
     {
diff --git a/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c b/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c
index 7484cae..1833639 100644
--- a/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c
+++ b/firmware/target/arm/s3c2440/gigabeat-fx/lcd-meg-fx.c
@@ -287,6 +287,7 @@ void lcd_enable(bool state)
 
         lcd_on = true;
         lcd_update();
+        lcd_call_enable_hook();
     }
     else 
     {
diff --git a/firmware/target/arm/sandisk/sansa-e200/lcd-e200.c b/firmware/target/arm/sandisk/sansa-e200/lcd-e200.c
index acdb2c9..9f8f580 100644
--- a/firmware/target/arm/sandisk/sansa-e200/lcd-e200.c
+++ b/firmware/target/arm/sandisk/sansa-e200/lcd-e200.c
@@ -436,6 +436,7 @@ void lcd_enable(bool on)
         DEV_EN |= DEV_LCD; /* Enable LCD controller */
         lcd_display_on();  /* Turn on display */
         lcd_update();      /* Resync display */
+        lcd_call_enable_hook();
         LCD_REG_6 |= 1;    /* Restart DMA */
         sleep(HZ/50);      /* Wait for a frame to be written */
     }
diff --git a/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c b/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c
index 8a268db..062b178 100644
--- a/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c
+++ b/firmware/target/arm/tcc780x/cowond2/lcd-cowond2.c
@@ -212,6 +212,7 @@ void lcd_enable(bool on)
         lcd_display_on();
         LCDC_CTRL |= 1;     /* controller enable */
         lcd_update();       /* Resync display */
+        lcd_call_enable_hook();
     }
     else
     {
diff --git a/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c b/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c
index a2634f0..b4b76d4 100644
--- a/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c
+++ b/firmware/target/arm/tms320dm320/creative-zvm/lcd-creativezvm.c
@@ -235,6 +235,7 @@ return;
     {
         lcd_display_on(false);  /* Turn on display */
         lcd_update();      /* Resync display */
+        lcd_call_enable_hook();
     }
     else
     {
diff --git a/firmware/target/coldfire/iaudio/x5/lcd-x5.c b/firmware/target/coldfire/iaudio/x5/lcd-x5.c
index 19faf04..5aecb36 100644
--- a/firmware/target/coldfire/iaudio/x5/lcd-x5.c
+++ b/firmware/target/coldfire/iaudio/x5/lcd-x5.c
@@ -383,6 +383,7 @@ void lcd_enable(bool on)
         /* Probably out of sync and we don't wanna pepper the code with
            lcd_update() calls for this. */
         lcd_update();
+        lcd_call_enable_hook();
     }
     else
     {
diff --git a/firmware/target/coldfire/iriver/h300/lcd-h300.c b/firmware/target/coldfire/iriver/h300/lcd-h300.c
index 5081366..61d0a6c 100644
--- a/firmware/target/coldfire/iriver/h300/lcd-h300.c
+++ b/firmware/target/coldfire/iriver/h300/lcd-h300.c
@@ -261,6 +261,7 @@ void lcd_enable(bool on)
         if(on)
         {
             _display_on();
+            lcd_call_enable_hook();
         }
         else
         {