Revision 1:a23fffad1321, committed 2020-09-10

Comitter:

elelthvd

Date:

Thu Sep 10 09:24:23 2020 +0000

Parent:

0:cffa136e7f8f

Commit message:

Add usage for Mbed Thread

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example_main.cpp	Thu Sep 10 09:24:23 2020 +0000
@@ -0,0 +1,15 @@
+/* example_main.cpp */
+//
+//#include "lvgl_f746ng.h"
+//#include "mbed.h"
+//
+//int main() {
+//  printf("main from context %p\n", ThisThread::get_id());
+//
+//  lvgl_f746ng_init(); // Initialize the LittlevGL
+//
+//  while (1) {
+//    thread_sleep_for(100);
+//  }
+//}
+//

--- a/lvgl_f746ng.cpp	Tue Sep 08 05:23:58 2020 +0000
+++ b/lvgl_f746ng.cpp	Thu Sep 10 09:24:23 2020 +0000
@@ -1,64 +1,41 @@
-/**
- * @file lvgl_f746ng.cpp
- *
- */
 
-/*********************
- *      INCLUDES
- *********************/
-#include "mbed.h"
 #include "lvgl_f746ng.h"
-#include <cstdio>
-#include "../lvgl/lvgl.h"
-#include "lv_port_disp.h"
-#include "lv_port_indev.h"
-
-/*********************
- *      DEFINES
- *********************/
-
-/**********************
- *      TYPEDEFS
- **********************/
 
-/**********************
- *  STATIC PROTOTYPES
- **********************/
-void lv_ticker_func(void);
-
-/**********************
- *  STATIC VARIABLES
- **********************/
-Ticker lvgl_ticker;  // mbed Ticker for lvgl
-
-/**********************
- *      MACROS
- **********************/
-
-/**********************
- *   GLOBAL FUNCTIONS
- **********************/
-
-/* Initialize lvgl + target port specifics + mbed ticker. */
-void lvgl_f746ng_init()
-{
-    debug("lvgl_f746ng_init\r\n"); 
-    lv_init();                                  //Initialize the LittlevGL
-    lv_port_disp_init();                        //Initialize diplay 
-    lv_port_indev_init();                       //Initialize touchpad
-    lvgl_ticker.attach(callback(&lv_ticker_func), 10ms); //Attach callback to ticker
+static void lv_ticker_func() {
+  // Call lv_tick_inc(x) every x milliseconds in a Timer or Task (x should be
+  // between 1 and 10). It is required for the internal timing of LittlevGL.
+  lv_tick_inc(LVGL_TICK_INC);
+  // Call lv_task_handler() periodically every few milliseconds.
+  // It will redraw the screen if required, handle input devices etc.
+  lv_task_handler();
 }
 
-/**********************
- *   STATIC FUNCTIONS
- **********************/
-/* Callback function for lvgl timing. */
-void lv_ticker_func()
-{
-    //Call lv_tick_inc(x) every x milliseconds in a Timer or Task (x should be between 1 and 10). 
-    //It is required for the internal timing of LittlevGL.
-    lv_tick_inc(10); 
-    //Call lv_task_handler() periodically every few milliseconds. 
-    //It will redraw the screen if required, handle input devices etc.
-    lv_task_handler(); 
+#ifdef LVGL_USE_THREAD
+static Thread lvgl_thread; // mbed Thread for lvgl
+static void lv_thread_func() {
+  printf("lv_thread_func from context %p\n", ThisThread::get_id());
+  while (1) {
+    ThisThread::sleep_for(LVGL_TICK_INC * 1ms);
+    lv_ticker_func();
+  }
 }
+#else
+static Ticker lvgl_ticker; // mbed Ticker for lvgl
+#endif /* LVGL_USE_THREAD */
+
+/* Initialize lvgl + target port specifics + mbed ticker or thread. */
+void lvgl_f746ng_init() {
+  printf("lvgl_f746ng_init from context %p\n", ThisThread::get_id());
+  lv_init();            // Initialize the LittlevGL
+  lv_port_disp_init();  // Initialize diplay
+  lv_port_indev_init(); // Initialize touchpad
+#ifdef LVGL_USE_THREAD
+  // Approach using mbed Thread
+  lvgl_thread.start(lv_thread_func);
+  // lvgl_thread.join();  // it will never join
+#else
+  // Approach using mbed Ticker
+  lvgl_ticker.attach(callback(&lv_ticker_func), LVGL_TICK_INC * 1ms);
+#endif /* LVGL_USE_THREAD */
+}
+

--- a/lvgl_f746ng.h	Tue Sep 08 05:23:58 2020 +0000
+++ b/lvgl_f746ng.h	Thu Sep 10 09:24:23 2020 +0000
@@ -1,39 +1,15 @@
-/**
- * @file lvgl_f746ng.h
- *
- */
 
-#ifndef LVGL_F746NG_H
-#define LVGL_F746NG_H
-
-// #ifdef __cplusplus
-// extern "C" {
-// #endif
-
-/*********************
- *      INCLUDES
- *********************/
+#include "lv_port_disp.h"
+#include "lv_port_indev.h"
+#include "lvgl/lvgl.h"
 #include "mbed.h"
+#include <cstdio>
 
-/*********************
- *      DEFINES
- *********************/
-
-/**********************
- *      TYPEDEFS
- **********************/
+/* Use Thread or not (comment or not) */
+#define LVGL_USE_THREAD
+/* LvGL tick increment value */
+#define LVGL_TICK_INC 5
 
-/**********************
- * GLOBAL PROTOTYPES
- **********************/
-void lvgl_f746ng_init(void);
+/* Initialize lvgl + target port specifics + mbed ticker or thread. */
+void lvgl_f746ng_init();
 
-/**********************
- *      MACROS
- **********************/
-
-// #ifdef __cplusplus
-// } /* extern "C" */
-// #endif
-
-#endif /*LVGL_F746NG_H*/