From d8c330821aa3ae1d441cdf3aed64d457d0ed0cd9 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Thu, 5 May 2022 23:31:10 +0200
Subject: kernel/driver: clean up the ps2/serial drivers

---
 src/kernel/util.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/kernel/util.h')

diff --git a/src/kernel/util.h b/src/kernel/util.h
index 0e57d67..59af755 100644
--- a/src/kernel/util.h
+++ b/src/kernel/util.h
@@ -19,3 +19,9 @@
 static inline int32_t capped_cast32(uint32_t u) {
 	return (int32_t)min(u, (uint32_t)INT32_MAX);
 }
+
+static inline int clamp(int lo, int i, int hi) {
+	if (i < lo) return lo;
+	if (i > hi) return hi;
+	return i;
+}
-- 
cgit v1.2.3