From 43acd6490a041708391fee33210efbf9343e1ec6 Mon Sep 17 00:00:00 2001
From: Artem Godlevskyi <artem.hodlevskyy@gmail.com>
Date: Thu, 1 Feb 2024 18:39:54 +0200
Subject: [PATCH] Added Zephyr integration

---
 impl/random.h        |  2 ++
 impl/random/zephyr.h | 13 +++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 impl/random/zephyr.h

diff --git a/impl/random.h b/impl/random.h
index 9b82bcf..152b995 100644
--- a/impl/random.h
+++ b/impl/random.h
@@ -11,6 +11,8 @@ static TLS struct {
 # include "random/esp32.h"
 #elif defined(PARTICLE) && defined(PLATFORM_ID) && PLATFORM_ID > 2 && !defined(__unix__)
 # include "random/particle.h"
+#elif defined(__ZEPHYR__)
+# include "random/zephyr.h"
 #elif (defined(NRF52832_XXAA) || defined(NRF52832_XXAB)) && !defined(__unix__)
 # include "random/nrf52832.h"
 #elif defined(_WIN32)
diff --git a/impl/random/zephyr.h b/impl/random/zephyr.h
new file mode 100644
index 0000000..6a2baf4
--- /dev/null
+++ b/impl/random/zephyr.h
@@ -0,0 +1,13 @@
+#include <zephyr/random/rand32.h>
+
+static int
+hydro_random_init(void)
+{
+    if (sys_csrand_get(&hydro_random_context.state, sizeof hydro_random_context.state) != 0) {
+        return -1;
+    }
+
+    hydro_random_context.counter = ~LOAD64_LE(hydro_random_context.state);
+
+    return 0;
+}