linux-ramdump-parser-v2: add support for thermal-info

Add a parser which parses relevant thermal device information.

Change-Id: I4edde5a59ba5150cabc282716a42b7084dadda62

linux-ramdump-parser-v2/parsers/thermal_data.py

+# Copyright (c) 2015, The Linux Foundation. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 and
+# only version 2 as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+from print_out import print_out_str
+from parser_util import register_parser, RamParser
+
+
+@register_parser(
+    '--thermal-info', 'Useful information from thermal data structures')
+class Thermal_info(RamParser):
+
+    def print_thermal_info(
+            self, sensor_dbg_info_start_address, ram_dump,
+            time_stamp, sensor_mapping):
+        for ncpu in ram_dump.iter_cpus():
+            self.output_file.write(
+                "------------------------------------------------\n")
+            self.output_file.write(
+                " TEMPERATURE ENTRIES FOR CPU:{0} \n".format(
+                    int(ncpu)))
+            self.output_file.write(
+                "------------------------------------------------\n")
+            cpu_sensor_addr = sensor_dbg_info_start_address + \
+                sensor_mapping[ncpu]
+            for i in range(0, 10):
+                temp = self.ramdump.read_word(cpu_sensor_addr + (i * 8), True)
+                time = self.ramdump.read_word(
+                    cpu_sensor_addr + time_stamp + (i * 8), True)
+                self.output_file.write(
+                    "Temperature reading -  {0} ".format(int(temp)))
+                self.output_file.write("TimeStamp - {0}\n".format(long(time)))
+
+    def tmdev_data(self, ram_dump):
+        sensor_mapping = []
+        self.output_file.write("Thermal sensor data \n")
+
+        tmdev = self.ramdump.addr_lookup('tmdev')
+        tmdev_address = self.ramdump.read_word(tmdev, True)
+        sensor_dbg_info_size = ram_dump.sizeof('struct tsens_sensor_dbg_info')
+        sensor_dbg_info = self.ramdump.field_offset(
+            'struct tsens_tm_device',
+            'sensor_dbg_info')
+        time_stamp = self.ramdump.field_offset(
+            'struct tsens_sensor_dbg_info',
+            'time_stmp')
+        cpus_sensor = self.ramdump.addr_lookup('cpus')
+        cpus_sensor_size = ram_dump.sizeof('struct cpu_info')
+        sensor_id_offset = self.ramdump.field_offset(
+            'struct cpu_info',
+            'sensor_id')
+
+        if not all((tmdev, sensor_dbg_info_size, sensor_dbg_info,
+                    time_stamp, cpus_sensor, cpus_sensor_size,
+                    sensor_id_offset)):
+            self.output_file.write("Not supported for this target yet  :-( \n")
+            return
+
+        for i in ram_dump.iter_cpus():
+            cpu_sensor_id_address = cpus_sensor + sensor_id_offset
+            sensor_id = self.ramdump.read_u32(cpu_sensor_id_address, True)
+            cpus_sensor = cpus_sensor + cpus_sensor_size
+            sensor_mapping.append((sensor_id - 1) * sensor_dbg_info_size)
+
+        self.print_thermal_info(
+            (tmdev_address + sensor_dbg_info),
+            ram_dump,
+            time_stamp,
+            sensor_mapping)
+
+    def parse(self):
+        self.output_file = self.ramdump.open_file('thermal_info.txt')
+
+        self.tmdev_data(self.ramdump)
+
+        self.output_file.close()
+        print_out_str("--- Wrote the output to thermal_info.txt")