scripts: gd32headers support usb headers

Add usb headers support for gd32headers.

Still in develop, test will added if this solution be confirmed.

Author: cameled

common_include/gd32_usb.h

@@ -0,0 +1,15 @@
+/*
+ * NOTE: Autogenerated file using gd32headers.py
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#if defined(CONFIG_SOC_SERIES_GD32F4XX)
+#include <drv_usb_dev.h>
+#include <drv_usb_regs.h>
+#include <drv_usbd_int.h>
+#include <drv_usbh_int.h>
+#include <drv_usb_core.h>
+#include <drv_usb_hw.h>
+#include <drv_usb_host.h>
+#endif

scripts/gd32headers.py

@@ -30,6 +30,8 @@ def main(hal_path, output):
 
     # obtain all available APIs for each series
     apis = dict()
+    usb_series = list()
+    usb_headers = list()
     for entry in sorted(hal_path.iterdir()):
         if not entry.is_dir() or not entry.name.startswith("gd32"):
             continue
@@ -51,6 +53,16 @@ def main(hal_path, output):
                 apis[api] = list()
             apis[api].append(entry.name)
 
+        usb_drivers = entry / "usb_drivers" / "include"
+        if not usb_drivers.exists():
+            continue
+
+        usb_series.append(entry.name)
+
+        # All usb headers are same between gd32 series.
+        if not usb_headers:
+            usb_headers = [p.name for p in usb_drivers.iterdir()]
+
     if output.exists():
         shutil.rmtree(output)
     output.mkdir(parents=True)
@@ -70,6 +82,24 @@ def main(hal_path, output):
                 f.write(f"#include <{series}_{api}.h>\n")
             f.write("#endif\n")
 
+    usb_header_file = output / ("gd32_usb.h")
+    with open(usb_header_file, "w") as f:
+        f.write("/*\n")
+        f.write(" * NOTE: Autogenerated file using gd32headers.py\n")
+        f.write(" *\n")
+        f.write(" * SPDX-License-Identifier: Apache-2.0\n")
+        f.write(" */\n\n")
+
+        for series in usb_series:
+            f.write(f"#if " if series == usb_series[0] else "\t")
+            f.write(f"defined(CONFIG_SOC_SERIES_{series.upper()})")
+            f.write(" || \\\n" if series != usb_series[-1] else "\n")
+
+        for header in usb_headers:
+            f.write("#include <" + header + ">\n")
+
+        f.write("#endif\n")
+
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()