1 files changed, 32 insertions, 0 deletions
diff --git a/devices/include/uart.h b/devices/include/uart.h
new file mode 100644
index 0000000..8b44519
--- /dev/null
+++ b/devices/include/uart.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#ifdef __ARCH__
+#include <stdio.h>
+#include <sys/io.h>
+
+#else
+/* from stdio */
+typedef struct FILE {
+  int id;
+  void (*putc)(const struct FILE *, char);
+  int (*puts)(const struct FILE *, const char *, int);
+  void (*flush)(const struct FILE *);
+} FILE;
+
+/* from sys/io */
+unsigned char inb(unsigned short);
+void outb(unsigned char, unsigned short);
+
+enum UART {
+  COM1 = 0x3f8,
+  COM2 = 0x2f8,
+  COM3 = 0x3e8,
+  COM4 = 0x2e8,
+  COM5 = 0x5f8,
+  COM6 = 0x4f8,
+  COM7 = 0x5e8,
+  COM8 = 0x4e8,
+};
+#endif
+
+FILE *uart_init(unsigned short port);