refactor all common parts and games

common/board/sg-cmd.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "hook/iobuf.h"
+
+struct sg_header {
+    uint8_t frame_len;
+    uint8_t addr;
+    uint8_t seq_no;
+    uint8_t cmd;
+};
+
+struct sg_req_header {
+    struct sg_header hdr;
+    uint8_t payload_len;
+};
+
+struct sg_res_header {
+    struct sg_header hdr;
+    uint8_t status;
+    uint8_t payload_len;
+};
+
+/* struct to save the version string with its length
+   to fix NUL terminator issues */
+struct version_info {
+    const char *version;
+    uint8_t length;
+};
+
+typedef HRESULT (*sg_dispatch_fn_t)(
+        void *ctx,
+        const void *req,
+        void *res);
+
+void sg_req_transact(
+        struct iobuf *res_frame,
+        const uint8_t *req_bytes,
+        size_t req_nbytes,
+        sg_dispatch_fn_t dispatch,
+        void *ctx);
+
+void sg_res_init(
+        struct sg_res_header *res,
+        const struct sg_req_header *req,
+        size_t payload_len);