1 files changed, 49 insertions, 0 deletions
diff --git a/arm9/source/dev.h b/arm9/source/dev.h
new file mode 100644
index 0000000..272baea
--- /dev/null
+++ b/arm9/source/dev.h
@@ -0,0 +1,49 @@
+#ifndef DEV_H_
+    #define DEV_H_
+
+    #include "devices/system.h"
+    #include "devices/memory.h"
+    #include "devices/math.h"
+    #include "devices/clock.h"
+    #include "devices/input.h"
+    #include "devices/screen.h"
+    #include "devices/stream.h"
+    #include "devices/file.h"
+
+
+    // Signals that can be emitted by a device.
+    typedef enum {
+        SIG_NONE = 0,
+        SIG_HALT,
+        SIG_DB1,
+        SIG_DB2,
+        SIG_DB3,
+        SIG_DB4,
+        SIG_DB5,
+        SIG_DB6,
+        SIG_SLEEP,
+        SIG_RESET,
+        SIG_FORK,
+    } Signal;
+
+    // Bedrock device bus.
+    typedef struct {
+        SystemDevice  system;
+        MemoryDevice  memory;
+        MathDevice      math;
+        ClockDevice    clock;
+        InputDevice    input;
+        ScreenDevice  screen;
+        StreamDevice  stream;
+        FileDevice      file;
+    } DeviceBus;
+
+    // Methods.
+    void dev_reset(DeviceBus *d);
+    u8 dev_read(DeviceBus *d, u8 port);
+    Signal dev_write(DeviceBus *d, u8 port, u8 v);
+
+    // Duplicate declarations from main.
+    void open_keyboard(void);
+    void close_keyboard(void);
+#endif