From 7fb3888b939b073bc5fba2dd1a1711edc507271d Mon Sep 17 00:00:00 2001
From: 3djc <lesitewebdejc@hotmail.com>
Date: Mon, 29 Jul 2024 12:13:47 +0200
Subject: [PATCH] feat(bw): do not show time on main view when RTC not set
 (#5342)

---
 radio/src/gui/128x64/view_main.cpp |  4 ++--
 radio/src/gui/212x64/view_main.cpp |  2 +-
 radio/src/rtc.cpp                  | 13 +++++++++++++
 radio/src/rtc.h                    |  1 +
 4 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/radio/src/gui/128x64/view_main.cpp b/radio/src/gui/128x64/view_main.cpp
index fccd54322..c82e868ec 100644
--- a/radio/src/gui/128x64/view_main.cpp
+++ b/radio/src/gui/128x64/view_main.cpp
@@ -674,13 +674,13 @@ void menuMainView(event_t event)
     lcdDrawText(15 * FW, 0, "BIND", 0);
   }
 #if defined(RTCLOCK)
-  else if (view_base != VIEW_CHAN_MONITOR) {
+  else if (view_base != VIEW_CHAN_MONITOR && rtcIsValid()) {
     drawRtcTime(CLOCK_X, CLOCK_Y, LEFT|TIMEBLINK);
   }
 #endif
 #else
 #if defined(RTCLOCK)
-  if (view_base != VIEW_CHAN_MONITOR) {
+  if (view_base != VIEW_CHAN_MONITOR && rtcIsValid()) {
     drawRtcTime(CLOCK_X, CLOCK_Y, LEFT|TIMEBLINK);
   }
 #endif
diff --git a/radio/src/gui/212x64/view_main.cpp b/radio/src/gui/212x64/view_main.cpp
index dc70467eb..c6dfadc35 100644
--- a/radio/src/gui/212x64/view_main.cpp
+++ b/radio/src/gui/212x64/view_main.cpp
@@ -335,7 +335,7 @@ void displayTopBar()
     LCD_ICON(BAR_VOLUME_X, BAR_Y, ICON_SPEAKER3);
 
   /* RTC time */
-  drawRtcTime(BAR_TIME_X, BAR_Y+1, LEFT|TIMEBLINK);
+  if (rtcIsValid()) drawRtcTime(BAR_TIME_X, BAR_Y+1, LEFT|TIMEBLINK);
 
   /* The background */
   lcdDrawFilledRect(BAR_X, BAR_Y, BAR_W, BAR_H, SOLID, FILL_WHITE|GREY(12)|ROUND);
diff --git a/radio/src/rtc.cpp b/radio/src/rtc.cpp
index 52f44518f..806e9ce6f 100644
--- a/radio/src/rtc.cpp
+++ b/radio/src/rtc.cpp
@@ -493,3 +493,16 @@ uint8_t rtcAdjust(uint16_t year, uint8_t mon, uint8_t day, uint8_t hour, uint8_t
   }
   return 0;
 }
+
+bool rtcIsValid()
+{
+  struct gtm t;
+  gettime(&t);
+
+  // If year is 2000, rtc circuit aren't working
+  // No RTC battery or other issue
+  if (t.tm_year <= 100)
+    return false;
+
+  return true;
+}
diff --git a/radio/src/rtc.h b/radio/src/rtc.h
index 2c3b1a3e6..471a08ded 100644
--- a/radio/src/rtc.h
+++ b/radio/src/rtc.h
@@ -50,6 +50,7 @@ struct gtm
 extern gtime_t g_rtcTime;
 extern uint8_t g_ms100; // global to allow time set function to reset to zero
 
+bool rtcIsValid();
 void rtcInit();
 void rtcSetTime(const struct gtm * tm);
 gtime_t gmktime (struct gtm *tm);