0071-RP2040-Implement-reset-reasons.patch

From 15a24c5fad616ff180b243bbb25bcad1b091ebc7 Mon Sep 17 00:00:00 2001
From: giulcioffi <g.cioffi@arduino.cc>
Date: Mon, 15 Mar 2021 17:52:09 +0100
Subject: [PATCH 71/87] RP2040: Implement reset reasons

---
 .../TARGET_RP2040/reset_reason.c              | 33 +++++++++++++++++++
 targets/targets.json                          |  3 +-
 2 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 targets/TARGET_RASPBERRYPI/TARGET_RP2040/reset_reason.c

diff --git a/targets/TARGET_RASPBERRYPI/TARGET_RP2040/reset_reason.c b/targets/TARGET_RASPBERRYPI/TARGET_RP2040/reset_reason.c
new file mode 100644
index 0000000000..7e511078c5
--- /dev/null
+++ b/targets/TARGET_RASPBERRYPI/TARGET_RP2040/reset_reason.c
@@ -0,0 +1,33 @@
+#include "reset_reason_api.h"
+#include "hardware/watchdog.h"
+
+#ifdef DEVICE_RESET_REASON
+
+#include "structs/resets.h"
+
+reset_reason_t hal_reset_reason_get(void)
+{
+    if (watchdog_caused_reboot()) {
+      return RESET_REASON_WATCHDOG;
+    } else {
+      return RESET_REASON_PIN_RESET;
+    }
+
+    return RESET_REASON_UNKNOWN;
+}
+
+
+uint32_t hal_reset_reason_get_raw(void)
+{
+    return resets_hw->reset;
+}
+
+
+void hal_reset_reason_clear(void)
+{
+    for (int i = 1; i < 25; i++) {
+      hw_clear_bits(&resets_hw->reset, i);
+    }
+}
+
+#endif // DEVICE_RESET_REASON
diff --git a/targets/targets.json b/targets/targets.json
index 64ade7825c..3cc7853680 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -8390,7 +8390,8 @@
             "SPI",
             "USTICKER",
             "WATCHDOG",
-            "USBDEVICE"
+            "USBDEVICE",
+            "RESET_REASON"
         ]
     },
     "NANO_RP2040_CONNECT": {
-- 
2.30.2