feat(rtthread): add cpu usage support (#6310)

env_support/rt-thread/lv_rt_thread_conf.h

@@ -30,6 +30,14 @@
     #define LV_USE_STDLIB_SPRINTF   LV_STDLIB_RTTHREAD
 #endif
 
+/*=========================
+   CPU usage
+ *=========================*/
+
+#ifdef PKG_USING_CPU_USAGE
+    #define LV_SYSMON_GET_IDLE   lv_timer_os_get_idle
+#endif /* PKG_USING_CPU_USAGE */
+
 /*=================
  * OPERATING SYSTEM
  *=================*/

env_support/rt-thread/lv_rt_thread_port.c

@@ -13,6 +13,9 @@
 
 #include <lvgl.h>
 #include <rtthread.h>
+#ifdef PKG_USING_CPU_USAGE
+#include "cpu_usage.h"
+#endif /* PKG_USING_CPU_USAGE */
 
 #define DBG_TAG    "LVGL"
 #define DBG_LVL    DBG_INFO
@@ -50,6 +53,13 @@ static void lv_rt_log(const char *buf)
 }
 #endif /* LV_USE_LOG */
 
+#ifdef PKG_USING_CPU_USAGE
+uint32_t lv_timer_os_get_idle(void)
+{
+    return (100 - (uint32_t)cpu_load_average());
+}
+#endif /* PKG_USING_CPU_USAGE */
+
 static void lvgl_thread_entry(void *parameter)
 {
 #if LV_USE_LOG
@@ -62,6 +72,10 @@ static void lvgl_thread_entry(void *parameter)
 
     lv_tick_set_cb(&rt_tick_get_millisecond);
 
+#ifdef PKG_USING_CPU_USAGE
+    cpu_usage_init();
+#endif /* PKG_USING_CPU_USAGE */
+
     /* handle the tasks of LVGL */
     while(1)
     {

env_support/rt-thread/squareline/SConscript

@@ -20,6 +20,6 @@ for root, dirs, files in os.walk(sls_src_cwd):
         if check_h_hpp_exists(current_path): # add .h and .hpp path
             inc = inc + [current_path]
  
-group = DefineGroup('LVGL-SquareLine', src, depend = ['PKG_USING_LVGL_SQUARELINE'], CPPPATH = inc)
+group = DefineGroup('LVGL-SquareLine', src, depend = ['PKG_LVGL_USING_SQUARELINE'], CPPPATH = inc)
  
 Return('group')