1 files changed, 27 insertions, 0 deletions
diff --git a/include/graphics/mbox.h b/include/graphics/mbox.h
new file mode 100644
index 0000000..fe021a2
--- /dev/null
+++ b/include/graphics/mbox.h
@@ -0,0 +1,27 @@
+#ifndef GRAPHICS_MBOX_H
+#define GRAPHICS_MBOX_H
+
+/* a properly aligned buffer */
+extern volatile unsigned int mbox[36];
+
+#define MBOX_REQUEST    0
+
+/* channels */
+#define MBOX_CH_POWER   0
+#define MBOX_CH_FB      1
+#define MBOX_CH_VUART   2
+#define MBOX_CH_VCHIQ   3
+#define MBOX_CH_LEDS    4
+#define MBOX_CH_BTNS    5
+#define MBOX_CH_TOUCH   6
+#define MBOX_CH_COUNT   7
+#define MBOX_CH_PROP    8
+
+/* tags */
+#define MBOX_TAG_SETPOWER       0x28001
+#define MBOX_TAG_SETCLKRATE     0x38002
+#define MBOX_TAG_LAST           0
+
+int mbox_call(unsigned char ch);
+
+#endif