From: Zhang Xiaoxu <[email protected]>
This implement some helper function for mtd device,
mtd driver test case can inherit 'MTDDriver' to simplify code.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Zhang Xiaoxu <[email protected]>
---
tools/testing/kddv/kddv/tests/mtd/__init__.py | 63 +++++++++++++++++++
1 file changed, 63 insertions(+)
create mode 100644 tools/testing/kddv/kddv/tests/mtd/__init__.py
diff --git a/tools/testing/kddv/kddv/tests/mtd/__init__.py b/tools/testing/kddv/kddv/tests/mtd/__init__.py
new file mode 100644
index 000000000000..4defd92deb05
--- /dev/null
+++ b/tools/testing/kddv/kddv/tests/mtd/__init__.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Kernel device driver verification
+#
+# Copyright (C) 2022-2023 Huawei Technologies Co., Ltd
+# Author: Wei Yongjun <[email protected]>
+
+import os
+import logging
+
+from pathlib import Path
+
+logger = logging.getLogger(__name__)
+
+class MTD(object):
+ def __init__(self, path):
+ mtd = next(path.glob("mtd/mtd*")).name
+ self.cdev = Path(f"/sys/class/mtd/{mtd}")
+ self.rdev = f"/dev/{mtd}"
+
+ def read_bytes(self, len, offset = 0):
+ with open(self.rdev, "rb") as dev:
+ if offset:
+ dev.seek(offset)
+ return dev.read(len)
+
+ def write_bytes(self, data, offset = 0):
+ with open(self.rdev, "wb") as dev:
+ if offset:
+ dev.seek(offset)
+ dev.write(data)
+
+ def read_attr(self, attr):
+ path = self.cdev / attr
+ logger.debug(f"read from {path}")
+ if not os.path.exists(path):
+ return f"attr '{attr}' not exists"
+ return path.read_text().rstrip()
+
+ def write_attr(self, attr, val):
+ path = self.cdev / attr
+ if not os.path.exists(path):
+ return f"attr '{attr}' not exists"
+ logger.debug(f"write '{val}' to {path}")
+ return path.write_bytes(val.encode())
+
+class MTDDriver(object):
+ def mtd_read_attr(self, dev, attr):
+ mtddev = MTD(dev.path)
+ return mtddev.read_attr(attr)
+
+ def mtd_write_attr(self, dev, attr, val):
+ mtddev = MTD(dev.path)
+ return mtddev.write_attr(attr)
+
+ def mtd_read_bytes(self, dev, len):
+ mtddev = MTD(dev.path)
+ return mtddev.read_bytes(len)
+
+ def mtd_write_bytes(self, dev, data):
+ mtddev = MTD(dev.path)
+ return mtddev.write_bytes(data)
--
2.34.1