From 0cdc7448e4560f365ac87de21f411b0cec1d740e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mario=20H=C3=BCttel?= <mario.huettel@gmx.net>
Date: Sun, 14 Jun 2020 13:35:47 +0200
Subject: [PATCH] Systick: Add function to calculate uptime in days, hours,
 minutes, and seconds from global tick

---
 .../include/reflow-controller/systick.h       |  2 ++
 stm-firmware/systick.c                        | 29 +++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/stm-firmware/include/reflow-controller/systick.h b/stm-firmware/include/reflow-controller/systick.h
index 505400e..c2adcd0 100644
--- a/stm-firmware/include/reflow-controller/systick.h
+++ b/stm-firmware/include/reflow-controller/systick.h
@@ -71,6 +71,8 @@ void systick_wait_ms(uint32_t ms);
 
 uint64_t systick_get_global_tick();
 
+void systick_get_uptime_from_tick(uint32_t *days, uint32_t *hours, uint32_t *minutes, uint32_t *seconds);
+
 bool systick_ticks_have_passed(uint64_t start_timestamp, uint64_t ticks);
 
 #endif /* __SYSTICK_H__ */
diff --git a/stm-firmware/systick.c b/stm-firmware/systick.c
index 96e77ed..6b5047c 100644
--- a/stm-firmware/systick.c
+++ b/stm-firmware/systick.c
@@ -53,6 +53,35 @@ uint64_t systick_get_global_tick()
 	return temp;
 }
 
+void systick_get_uptime_from_tick(uint32_t *days, uint32_t *hours, uint32_t *minutes, uint32_t *seconds)
+{
+	uint64_t tick_secs;
+	uint32_t secs;
+	uint32_t mins;
+	uint32_t hs;
+	uint32_t ds;
+
+
+	tick_secs = systick_get_global_tick() / 1000;
+	secs = tick_secs % 60;
+	tick_secs /= 60;
+	mins = tick_secs % 60;
+	tick_secs /= 60;
+	hs = tick_secs % 60;
+	tick_secs /= 24;
+	ds = tick_secs;
+
+	if (days)
+		*days = ds;
+	if (hours)
+		*hours = hs;
+	if (minutes)
+		*minutes = mins;
+	if (seconds)
+		*seconds = secs;
+
+}
+
 bool __attribute__((optimize("O3"))) systick_ticks_have_passed(uint64_t start_timestamp, uint64_t ticks)
 {
 	uint64_t end_timestamp = start_timestamp + ticks;