Kernel: Add a ringbuffer

This will be used later

1 files changed, 16 insertions, 0 deletions

diff --git a/kernel/lib/ringbuffer.h b/kernel/lib/ringbuffer.h
new file mode 100644
index 0000000..c329af3
--- /dev/null
+++ b/kernel/lib/ringbuffer.h
@@ -0,0 +1,16 @@
+#include <typedefs.h>
+
+struct ringbuffer {
+  u8 *buffer;
+  u32 buffer_size;
+  u32 read_ptr;
+  u32 write_ptr;
+};
+
+int ringbuffer_init(struct ringbuffer *rb, u32 buffer_size);
+u32 ringbuffer_write(struct ringbuffer *rb, const u8 *buffer, u32 len);
+u32 ringbuffer_read(struct ringbuffer *rb, u8 *buffer, u32 len);
+void ringbuffer_free(struct ringbuffer *rb);
+#ifdef KERNEL_TEST
+void ringbuffer_test(void);
+#endif // KERNEL_TEST