lcd/fb: sim used wd timer to process loop event

used wdt thread to process event

Signed-off-by: yezhonghui <yezhonghui@xiaomi.com>

arch/sim/Kconfig

@@ -454,6 +454,12 @@ config SIM_X11NOSHM
 	---help---
 		Don't use shared memory with the X11 graphics device emulation.
 
+config SIM_X11UPDATE_INTERVAL
+	int "X11 update interval in ms"
+	default 16
+	---help---
+		 X11 update sleep time
+
 menu "Window Configuration"
 
 config SIM_FBHEIGHT

arch/sim/src/sim/sim_framebuffer.c

@@ -432,31 +432,25 @@ static int sim_setpower(struct fb_vtable_s *vtable, int power)
  * Name: sim_x11loop
  ****************************************************************************/
 
+#ifdef CONFIG_SIM_X11FB
 void sim_x11loop(void)
 {
-#ifdef CONFIG_SIM_X11FB
-  static clock_t last;
-  clock_t now = clock_systime_ticks();
   union fb_paninfo_u info;
 
-  if (now - last >= MSEC2TICK(16))
+  fb_notify_vsync(&g_fbobject);
+  if (fb_paninfo_count(&g_fbobject, FB_NO_OVERLAY) > 1)
     {
-      last = now;
+      fb_remove_paninfo(&g_fbobject, FB_NO_OVERLAY);
-      fb_notify_vsync(&g_fbobject);
-      if (fb_paninfo_count(&g_fbobject, FB_NO_OVERLAY) > 1)
-        {
-          fb_remove_paninfo(&g_fbobject, FB_NO_OVERLAY);
-        }
-
-      if (fb_peek_paninfo(&g_fbobject, &info, FB_NO_OVERLAY) == OK)
-        {
-          sim_x11setoffset(info.planeinfo.yoffset * info.planeinfo.stride);
-        }
-
-      sim_x11update();
     }
-#endif
+
+  if (fb_peek_paninfo(&g_fbobject, &info, FB_NO_OVERLAY) == OK)
+    {
+      sim_x11setoffset(info.planeinfo.yoffset * info.planeinfo.stride);
+    }
+
+  sim_x11update();
 }
+#endif
 
 /****************************************************************************
  * Name: up_fbinitialize

arch/sim/src/sim/sim_initialize.c

@@ -44,6 +44,7 @@
  ****************************************************************************/
 
 #define SIM_X11EVENT_PERIOD    MSEC2TICK(CONFIG_SIM_X11EVENT_INTERVAL)
+#define SIM_X11UPDATE_PERIOD   MSEC2TICK(CONFIG_SIM_X11UPDATE_INTERVAL)
 
 /****************************************************************************
  * Private Data
@@ -54,6 +55,10 @@
 static struct wdog_s g_x11event_wdog;   /* Watchdog for event loop */
 #endif
 
+#ifdef CONFIG_SIM_X11FB
+static struct wdog_s g_x11update_wdog;  /* Watchdog for update loop */
+#endif
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
@@ -92,6 +97,23 @@ static void sim_x11event_interrupt(wdparm_t arg)
 }
 #endif
 
+/****************************************************************************
+ * Name: sim_x11update_interrupt
+ *
+ * Description:
+ *   interrupts event process function
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SIM_X11FB
+static void sim_x11update_interrupt(wdparm_t arg)
+{
+  sim_x11loop();
+  wd_start_next((FAR struct wdog_s *)arg, SIM_X11UPDATE_PERIOD,
+                sim_x11update_interrupt, arg);
+}
+#endif
+
 /****************************************************************************
  * Name: sim_init_smartfs
  *
@@ -202,10 +224,6 @@ static int sim_loop_task(int argc, char **argv)
 
       sched_lock();
 
-#if defined(CONFIG_SIM_LCDDRIVER) || defined(CONFIG_SIM_FRAMEBUFFER)
-      sim_x11loop();
-#endif
-
 #ifdef CONFIG_SIM_NETDEV
       /* Run the network if enabled */
 
@@ -355,6 +373,11 @@ void up_initialize(void)
            (wdparm_t)&g_x11event_wdog);
 #endif
 
+#ifdef CONFIG_SIM_X11FB
+  wd_start(&g_x11update_wdog, 0, sim_x11update_interrupt,
+           (wdparm_t)&g_x11update_wdog);
+#endif
+
   kthread_create("loop_task", CONFIG_SIM_LOOPTASK_PRIORITY,
                  CONFIG_DEFAULT_TASK_STACKSIZE,
                  sim_loop_task, NULL);

arch/sim/src/sim/sim_lcd.c

@@ -468,27 +468,20 @@ static int sim_closewindow(struct lcd_dev_s *dev)
   return ret;
 }
 
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
 /****************************************************************************
  * Name: sim_x11loop
  ****************************************************************************/
 
+#ifdef CONFIG_SIM_X11FB
 void sim_x11loop(void)
 {
-#ifdef CONFIG_SIM_X11FB
+  sim_x11update();
-  static clock_t last;
-  clock_t now = clock_systime_ticks();
-
-  if (now - last >= MSEC2TICK(16))
-    {
-      sim_x11update();
-      last = now;
-    }
-#endif
 }
-
+#endif
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
 
 /****************************************************************************
  * Name:  board_lcd_initialize