From b31cc96c10887fd7d02a8a539baec423fcd0aa44 Mon Sep 17 00:00:00 2001
From: anschrammh <bugreport@laposte.net>
Date: Fri, 24 Mar 2023 15:02:22 +0100
Subject: [PATCH] Added the tls_is_rtc_running function which is not part of
 the official SDK. This allows to start the RTC after a reset and to know when
 it stopped running.

---
 src/W800_SDK_v1.00.10/include/driver/wm_rtc.h       | 12 ++++++++++++
 src/W800_SDK_v1.00.10/platform/drivers/rtc/wm_rtc.c |  7 +++++++
 2 files changed, 19 insertions(+)

diff --git a/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h b/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
index 513f21b..d352010 100644
--- a/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
+++ b/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
@@ -58,6 +58,18 @@ void tls_set_rtc(struct tm *tblock);
  */
 void tls_get_rtc(struct tm *tblock);
 
+/** NOT PART OF THE OFFICIAL SDK **/
+
+/**
+ * @brief Checks if the RTC peripheral is running or not
+ * 
+ * @return true 
+ * @return false 
+ */
+bool tls_is_rtc_running(void);
+
+/**********************************/
+
 /**
  * @brief          This function is used to register pmu rtc interrupt
  *
diff --git a/src/W800_SDK_v1.00.10/platform/drivers/rtc/wm_rtc.c b/src/W800_SDK_v1.00.10/platform/drivers/rtc/wm_rtc.c
index 7e947af..cd4d1fc 100644
--- a/src/W800_SDK_v1.00.10/platform/drivers/rtc/wm_rtc.c
+++ b/src/W800_SDK_v1.00.10/platform/drivers/rtc/wm_rtc.c
@@ -82,6 +82,13 @@ void tls_get_rtc(struct tm *tblock)
 	tblock->tm_sec  =  ctrl1 & 0x0000003f;
 }
 
+bool tls_is_rtc_running(void)
+{
+    int ctrl2 = tls_reg_read32(HR_PMU_RTC_CTRL2);
+    
+    return ctrl2 & (1 << 16) ? true : false;
+}
+
 void PMU_RTC_IRQHandler(void)
 {
     tls_reg_write32(HR_PMU_INTERRUPT_SRC, BIT(4)); /* clear rtc interrupt */