1 files changed, 58 insertions, 0 deletions
diff --git a/trappy/common_clk.py b/trappy/common_clk.py
new file mode 100644
index 0000000..7bccb9c
--- /dev/null
+++ b/trappy/common_clk.py
@@ -0,0 +1,58 @@
+#    Copyright 2017 Google, ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+"""
+Definitions of common_clk (CONFIG_COMMON_CLK) trace parsers
+registered by the FTrace class
+"""
+
+from trappy.base import Base
+from trappy.dynamic import register_ftrace_parser, register_dynamic_ftrace
+
+class CommonClkBase(Base):
+    #clock traces are of the form "clk_name field0=x field1=y ..."
+    def generate_data_dict(self, data_str):
+        clk_name, fields = data_str.split(' ', 1)
+        ret = super(CommonClkBase, self).generate_data_dict(fields)
+        ret['clk_name'] = clk_name
+        return ret 
+
+class CommonClkEnable(CommonClkBase):
+    """Corresponds to Linux kernel trace event clock_enable"""
+
+    unique_word = "clock_enable:"
+    """The unique word that will be matched in a trace line"""
+
+register_ftrace_parser(CommonClkEnable)
+
+class CommonClkDisable(CommonClkBase):
+    """Corresponds to Linux kernel trace event clock_disable"""
+
+    unique_word = "clock_disable:"
+    """The unique word that will be matched in a trace line"""
+
+register_ftrace_parser(CommonClkDisable)
+
+class CommonClkSetRate(CommonClkBase):
+    """Corresponds to Linux kernel trace event clock_set_rate"""
+
+    unique_word = "clock_set_rate:"
+    """The unique word that will be matched in a trace line"""
+
+    def finalize_object(self):
+        self.data_frame.rename(columns={'state':'rate'}, inplace=True)
+
+register_ftrace_parser(CommonClkSetRate)