LED board improvements and cleanup

board/led15093-frame.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "hook/iobuf.h"
+
+enum {
+    LED_15093_FRAME_SYNC = 0xE0,
+    LED_15093_FRAME_ESC  = 0xD0,
+};
+
+struct led15093_req_hdr {
+    uint8_t sync;
+    uint8_t dest_adr;
+    uint8_t src_adr;
+    uint8_t nbytes;
+};
+
+struct led15093_resp_hdr {
+    uint8_t sync;
+    uint8_t dest_adr;
+    uint8_t src_adr;
+    uint8_t nbytes;
+};
+
+HRESULT led15093_frame_decode(struct iobuf *dest, struct iobuf *src);
+
+HRESULT led15093_frame_encode(
+        struct iobuf *dest,
+        const void *ptr,
+        size_t nbytes);