Add cmsis export generator

2 files changed, 32 insertions, 0 deletions

diff --git a/fw/.gitignore b/fw/.gitignore
index 2d9d6e6..9c55c38 100644
--- a/fw/.gitignore
+++ b/fw/.gitignore
@@ -7,4 +7,6 @@
 *.bin
 *.hex
 *.pp
+
 transpose.elf
+cmsis_exports.c
diff --git a/fw/gen_cmsis_exports.py b/fw/gen_cmsis_exports.py
new file mode 100644
index 0000000..ba3422b
--- /dev/null
+++ b/fw/gen_cmsis_exports.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+import re
+import os
+
+if __name__ == '__main__':
+    import argparse
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument('cmsis_device_header', nargs='+', type=argparse.FileType('rb'))
+    args = parser.parse_args()
+    
+    print('#ifndef __GENERATED_CMSIS_HEADER_EXPORTS__')
+    print('#define __GENERATED_CMSIS_HEADER_EXPORTS__')
+    print()
+    for header in args.cmsis_device_header:
+        lines = header.readlines()
+        name = os.path.basename(header.name)
+        print('#include <{}>'.format(name))
+        print()
+
+        print('/* {} */'.format(name))
+        for l in lines:
+            match = re.match(b'^#define (\w+)\s+\W*(\w+_TypeDef|\w+_Type).*$', l)
+            if match:
+                inst, typedef = match.groups()
+                inst, typedef = inst.decode(), typedef.decode()
+                print('{} *{} = {};'.format(typedef, inst.lower(), inst))
+        print()
+    print('#endif//__GENERATED_CMSIS_HEADER_EXPORTS__')
+