From 62f31a3282f740b5bd7a28f9c94c76dd05e3babc Mon Sep 17 00:00:00 2001
From: Hendrik Sauer <stu213313@mail.uni-kiel.de>
Date: Mon, 14 Jun 2021 15:44:07 +0200
Subject: [PATCH] Add thread to handle lvgl events

---
 src/display.c | 9 +++++++++
 src/display.h | 2 ++
 src/main.c    | 7 ++++++-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/display.c b/src/display.c
index d982e90..170483d 100644
--- a/src/display.c
+++ b/src/display.c
@@ -27,6 +27,15 @@ lv_style_t yellow_button_style;
 lv_style_t red_button_style;
 #endif
 
+void display_thread(void* arg1, void* arg2, void* arg3) {
+	#ifdef DISPLAY
+	while (1) {
+		lv_task_handler();
+		k_msleep(10);
+	}
+	#endif
+}
+
 int get_battery_percentage() {
 	return 74;
 }
diff --git a/src/display.h b/src/display.h
index c09a2ee..9d3f643 100644
--- a/src/display.h
+++ b/src/display.h
@@ -5,6 +5,8 @@ int init_display();
 
 int update_display();
 
+void display_thread(void*, void*, void*);
+
 int display_set_message(char* msg);
 
 int display_set_time(int time);
diff --git a/src/main.c b/src/main.c
index 7f0a1ee..78c6bb3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -19,6 +19,8 @@
 #include "io.h"
 #include "display.h"
 
+K_THREAD_STACK_DEFINE(display_stack_area, 500);
+
 void main(void) {
     int err = 0;
     printk("Starting Covid Contact Tracer\n");
@@ -73,7 +75,10 @@ void main(void) {
 	if (err) {
 		printk("init display failed (err %d)\n", err);
 	}
-
+    
+    struct k_thread display_thread_data;
+    k_tid_t display_tid = k_thread_create(&display_thread_data, display_stack_area, K_THREAD_STACK_SIZEOF(display_stack_area), display_thread, NULL, NULL, NULL, 0, 0, K_NO_WAIT);
+    
 	do{
 		do_covid();
 		do_gatt();