1 files changed, 43 insertions, 0 deletions
diff --git a/src/kernel/clock.h b/src/kernel/clock.h
new file mode 100644
index 0000000..c3554f6
--- /dev/null
+++ b/src/kernel/clock.h
@@ -0,0 +1,43 @@
+/**
+ * @file clock.h
+ * Clock utilities
+ *
+ * Copyright (C) 2018 Clyne Sullivan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef CLOCK_H_
+#define CLOCK_H_
+
+#include <stdint.h>
+
+/**
+ * Initializes clocks, setting HCLK (system clock) to 80MHz, the maximum.
+ */
+extern void clock_init(void);
+
+/**
+ * Sleeps for given amount of milliseconds.
+ * @param ms Number of milliseconds to sleep for
+ */
+void delay(uint32_t ms);
+
+/**
+ * Sleeps for the given amount of microseconds.
+ * @param count Number of microseconds to sleep for
+ */
+void udelay(uint32_t count);
+
+#endif // CLOCK_H_