More clock-like lvgl

examples/lvgl/main.c

@@ -1,23 +1,74 @@
 #include <stdio.h>
 
 #include <libtock-sync/display/screen.h>
+#include <libtock-sync/peripherals/rtc.h>
 #include <libtock-sync/services/alarm.h>
 
 #include <lvgl/lvgl.h>
 
 #include "lvgl_driver.h"
 
-/*static void event_handler(lv_event_t* e) {
-  lv_event_code_t code  = lv_event_get_code(e);
-  unsigned int* seconds = (unsigned int*)lv_event_get_user_data(e);
+libtock_rtc_date_t date;
+uint32_t reference = 0;
+lv_obj_t* label1;
+lv_obj_t* seconds_lbl;
+lv_obj_t* batt_lbl;
+libtock_alarm_t rtc_alarm;
+libtock_alarm_t update_alarm;
+char label1_buffer[8];
+char seconds_buffer[4];
+char batt_buffer[8];
+
+void rtc_callback(uint32_t now, uint32_t scheduled, void* ud);
+
+void rtc_done(returncode_t success, libtock_rtc_date_t new_date) {
+  date = new_date;
+  libtock_alarm_command_read(&reference);
+  date.hour += 24 - 7;
+  date.hour = date.hour % 24;
+  libtock_alarm_in_ms(60000, rtc_callback, &date, &rtc_alarm);
+}
+
+void rtc_callback(uint32_t now, uint32_t scheduled, void* ud) {
+  //libtock_rtc_get_date(rtc_done);
+}
+
+void update_callback(uint32_t now, uint32_t scheduled, void* ud) {
+
+  uint16_t sample;
+  int err = libtocksync_adc_sample(0, &sample);
+  if (err == 0) {
+    sprintf(batt_buffer, "%d", sample);
+  } else {
+    sprintf(batt_buffer, "Err");
+  }
+  lv_label_set_text(batt_lbl, batt_buffer);
+
+  uint32_t diff_seconds = libtock_alarm_ticks_to_ms(now - reference) / 1000;
 
-  if (code == LV_EVENT_CLICKED) {
-    LV_LOG_USER("Clicked");
-    *seconds = 0;
-  } else if (code == LV_EVENT_VALUE_CHANGED) {
-    LV_LOG_USER("Toggled");
+  int seconds = date.seconds + diff_seconds;
+  int minutes = date.minute + seconds / 60;
+  int hours = date.hour + minutes / 60;
+
+  seconds = seconds % 60;
+  minutes = minutes % 60;
+  hours = hours % 24;
+
+  const char *ampm = "am";
+  if (date.hour > 12) {
+    ampm = "pm";
   }
-}*/
+  hours = hours % 12;
+
+  sprintf(label1_buffer, "%02d:%02d%s", hours, minutes, ampm);
+  lv_label_set_text(label1, label1_buffer);
+  sprintf(seconds_buffer, "%02d", seconds);
+  lv_label_set_text(seconds_lbl, seconds_buffer);
+
+  lv_task_handler();
+  lv_tick_inc(LV_DEF_REFR_PERIOD);
+  libtock_alarm_in_ms(1000, update_callback, &date, &update_alarm);
+}
 
 int main(void) {
   libtocksync_screen_set_brightness(100);
@@ -31,31 +82,25 @@ int main(void) {
     lv_obj_set_height(obj1, lv_pct(100));
     lv_obj_set_width(obj1, lv_pct(100));
 
-    lv_obj_t* label1 = lv_label_create(scr);
-
-    lv_label_set_text(label1, "Hello world!");
+    batt_lbl = lv_label_create(scr);
+    lv_label_set_text(batt_lbl, "???");
+    lv_obj_align(batt_lbl, LV_ALIGN_TOP_LEFT, 0, 0);
 
+    label1 = lv_label_create(scr);
+    lv_label_set_text(label1, "00:00am");
     lv_obj_align(label1, LV_ALIGN_CENTER, 0, 0);
 
-    lv_obj_t* btn1 = lv_btn_create(scr);
-    //lv_obj_add_event_cb(btn1, event_handler, LV_EVENT_ALL, &seconds);
-    lv_obj_align(btn1, LV_ALIGN_CENTER, 0, -40);
-
-    lv_obj_t* label = lv_label_create(btn1);
-    lv_label_set_text(label, "Reset");
-    lv_obj_center(label);
+    seconds_lbl = lv_label_create(scr);
+    lv_label_set_text(seconds_lbl, "00");
+    lv_obj_align(seconds_lbl, LV_ALIGN_CENTER, 0, 40);
 
     lv_task_handler();
 
-    int seconds = 0;
+    libtock_alarm_in_ms(1, rtc_callback, &date, &rtc_alarm);
+    libtock_alarm_in_ms(1, update_callback, &date, &update_alarm);
+
     while (1) {
-      libtocksync_alarm_delay_ms(1000);
-      seconds++;
-      char buffer[100];
-      int written = snprintf(buffer, sizeof(buffer), "%d", seconds);
-      lv_label_set_text(label1, buffer);
-      lv_task_handler();
-      lv_tick_inc(LV_DEF_REFR_PERIOD);
+      yield();
     }
 
   } else {